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49712477490 = 23451333714009
BaseRepresentation
bin101110010011000110…
…000011010100110010
311202022112210111220000
4232103012003110302
51303302343234430
634500530530430
73406631041464
oct562306032462
9152275714800
1049712477490
111a0a0441145
129774736a16
1348c3320370
142598488134
15145e4ece60
hexb93183532

49712477490 has 160 divisors (see below), whose sum is σ = 144391206960. Its totient is φ = 12199735296.

The previous prime is 49712477473. The next prime is 49712477513. The reversal of 49712477490 is 9477421794.

It is a happy number.

49712477490 is a `hidden beast` number, since 49 + 71 + 2 + 47 + 7 + 490 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 13729043241 + 35983434249 = 117171^2 + 189693^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3541606 + ... + 3555614.

Almost surely, 249712477490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49712477490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72195603480).

49712477490 is an abundant number, since it is smaller than the sum of its proper divisors (94678729470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49712477490 is a wasteful number, since it uses less digits than its factorization.

49712477490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14378 (or 14369 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 49712477490 in words is "forty-nine billion, seven hundred twelve million, four hundred seventy-seven thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 81 90 117 130 135 162 195 234 270 337 351 390 405 585 674 702 810 1011 1053 1170 1685 1755 2022 2106 3033 3370 3510 4381 5055 5265 6066 8762 9099 10110 10530 13143 14009 15165 18198 21905 26286 27297 28018 30330 39429 42027 43810 45495 54594 65715 70045 78858 84054 90990 118287 126081 131430 136485 140090 182117 197145 210135 236574 252162 272970 354861 364234 378243 394290 420270 546351 591435 630405 709722 756486 910585 1092702 1134729 1182870 1260810 1639053 1774305 1821170 1891215 2269458 2731755 3278106 3548610 3782430 4721033 4917159 5463510 5673645 8195265 9442066 9834318 11347290 14163099 14751477 16390530 23605165 24585795 28326198 29502954 42489297 47210330 49171590 61373429 70815495 73757385 84978594 122746858 127467891 141630990 147514770 184120287 212446485 254935782 306867145 368240574 382403673 424892970 552360861 613734290 637339455 764807346 920601435 1104721722 1274678910 1657082583 1841202870 1912018365 2761804305 3314165166 3824036730 4971247749 5523608610 8285412915 9942495498 16570825830 24856238745 49712477490