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74087018904 = 23343213912011
BaseRepresentation
bin100010011111111101…
…1100011000110011000
321002020020210111211010
41010333323203012120
52203212234101104
654011325533520
75231642161443
oct1047773430630
9232206714733
1074087018904
1129469210948
12124377142a0
136ca90b6132
14382b73c65a
151dd9324489
hex113fee3198

74087018904 has 96 divisors (see below), whose sum is σ = 191005214400. Its totient is φ = 23945826240.

The previous prime is 74087018791. The next prime is 74087018981. The reversal of 74087018904 is 40981078047.

It is a super-2 number, since 2×740870189042 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6162259 + ... + 6174269.

It is an arithmetic number, because the mean of its divisors is an integer number (1989637650).

Almost surely, 274087018904 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 74087018904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95502607200).

74087018904 is an abundant number, since it is smaller than the sum of its proper divisors (116918195496).

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

74087018904 is a wasteful number, since it uses less digits than its factorization.

74087018904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12245 (or 12198 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 74087018904 in words is "seventy-four billion, eighty-seven million, eighteen thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 24 43 86 129 139 172 258 278 344 417 516 556 834 1032 1112 1668 1849 3336 3698 5547 5977 7396 11094 11954 12011 14792 17931 22188 23908 24022 35862 36033 44376 47816 48044 71724 72066 96088 143448 144132 257011 288264 514022 516473 771033 1028044 1032946 1542066 1549419 1669529 2056088 2065892 3084132 3098838 3339058 4131784 5008587 6168264 6197676 6678116 10017174 12395352 13356232 20034348 22208339 40068696 44416678 66625017 71789747 88833356 133250034 143579494 177666712 215369241 266500068 287158988 430738482 533000136 574317976 861476964 1722953928 3086959121 6173918242 9260877363 12347836484 18521754726 24695672968 37043509452 74087018904