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31304714850 = 2325267215497
BaseRepresentation
bin11101001001111010…
…000000101001100010
32222210200100021200100
4131021322000221202
51003103001333400
622214200403230
72155521454143
oct351172005142
988720307610
1031304714850
1112304771672
126097a76516
132c4b791116
14172d835aca
15c3344b100
hex749e80a62

31304714850 has 108 divisors (see below), whose sum is σ = 85384882674. Its totient is φ = 8222797440.

The previous prime is 31304714839. The next prime is 31304714851. The reversal of 31304714850 is 5841740313.

It is a happy number.

31304714850 is a `hidden beast` number, since 3 + 130 + 47 + 1 + 485 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 29672474049 + 1632240801 = 172257^2 + 40401^2 .

It is not an unprimeable number, because it can be changed into a prime (31304714851) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 2012302 + ... + 2027798.

Almost surely, 231304714850 is an apocalyptic number.

31304714850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31304714850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42692441337).

31304714850 is an abundant number, since it is smaller than the sum of its proper divisors (54080167824).

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

31304714850 is a wasteful number, since it uses less digits than its factorization.

31304714850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649 (or 15574 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 31304714850 in words is "thirty-one billion, three hundred four million, seven hundred fourteen thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 67 75 90 134 150 201 225 335 402 450 603 670 1005 1206 1675 2010 3015 3350 4489 5025 6030 8978 10050 13467 15075 15497 22445 26934 30150 30994 40401 44890 46491 67335 77485 80802 92982 112225 134670 139473 154970 202005 224450 232455 278946 336675 387425 404010 464910 673350 697365 774850 1010025 1038299 1162275 1394730 2020050 2076598 2324550 3114897 3486825 5191495 6229794 6973650 9344691 10382990 15574485 18689382 25957475 31148970 46723455 51914950 69566033 77872425 93446910 139132066 155744850 208698099 233617275 347830165 417396198 467234550 626094297 695660330 1043490495 1252188594 1739150825 2086980990 3130471485 3478301650 5217452475 6260942970 10434904950 15652357425 31304714850