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74694949460 = 22519787721617
BaseRepresentation
bin100010110010000101…
…0100111101001010100
321010210121201120202122
41011210022213221110
52210433401340320
654151523555112
75253003410645
oct1054412475124
9233717646678
1074694949460
112975039609a
121258722ba98
13707502a661
14388838b6cc
151e228abd25
hex11642a7a54

74694949460 has 48 divisors (see below), whose sum is σ = 157842702864. Its totient is φ = 29691045888.

The previous prime is 74694949453. The next prime is 74694949471. The reversal of 74694949460 is 6494949647.

It can be written as a sum of positive squares in 8 ways, for example, as 5107675024 + 69587274436 = 71468^2 + 263794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74694949393 and 74694949402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3444572 + ... + 3466188.

It is an arithmetic number, because the mean of its divisors is an integer number (3288389643).

Almost surely, 274694949460 is an apocalyptic number.

It is an amenable number.

74694949460 is an abundant number, since it is smaller than the sum of its proper divisors (83147753404).

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

74694949460 is a wasteful number, since it uses less digits than its factorization.

74694949460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22700 (or 22698 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 62.

The spelling of 74694949460 in words is "seventy-four billion, six hundred ninety-four million, nine hundred forty-nine thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 197 394 788 877 985 1754 1970 3508 3940 4385 8770 17540 21617 43234 86468 108085 172769 216170 345538 432340 691076 863845 1727690 3455380 4258549 8517098 17034196 18958109 21292745 37916218 42585490 75832436 85170980 94790545 189581090 379162180 3734747473 7469494946 14938989892 18673737365 37347474730 74694949460