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74948924440 = 23513231357649
BaseRepresentation
bin100010111001101001…
…1011101010000011000
321011110022121211221101
41011303103131100120
52211443411040230
654233035321144
75262206226535
oct1056323352030
9234408554841
1074948924440
1129870794275
12126382b01b4
1370b5832400
1438addbdd8c
151e39d28aca
hex11734dd418

74948924440 has 96 divisors (see below), whose sum is σ = 188495856000. Its totient is φ = 26780682240.

The previous prime is 74948924423. The next prime is 74948924441. The reversal of 74948924440 is 4442984947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74948924441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30736 + ... + 388384.

It is an arithmetic number, because the mean of its divisors is an integer number (1963498500).

Almost surely, 274948924440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74948924440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94247928000).

74948924440 is an abundant number, since it is smaller than the sum of its proper divisors (113546931560).

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

74948924440 is a wasteful number, since it uses less digits than its factorization.

74948924440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357717 (or 357700 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 55.

The spelling of 74948924440 in words is "seventy-four billion, nine hundred forty-eight million, nine hundred twenty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 31 40 52 62 65 104 124 130 155 169 248 260 310 338 403 520 620 676 806 845 1240 1352 1612 1690 2015 3224 3380 4030 5239 6760 8060 10478 16120 20956 26195 41912 52390 104780 209560 357649 715298 1430596 1788245 2861192 3576490 4649437 7152980 9298874 11087119 14305960 18597748 22174238 23247185 37195496 44348476 46494370 55435595 60442681 88696952 92988740 110871190 120885362 144132547 185977480 221742380 241770724 288265094 302213405 443484760 483541448 576530188 604426810 720662735 1153060376 1208853620 1441325470 1873723111 2417707240 2882650940 3747446222 5765301880 7494892444 9368615555 14989784888 18737231110 37474462220 74948924440