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74870404 = 22713919237
BaseRepresentation
bin1000111011001…
…10111010000100
312012212210212221
410131212322010
5123131323104
611232422124
71566250030
oct435467204
9165783787
1074870404
1139298274
12210a7944
131268561b
149d2d1c0
15688dc54
hex4766e84

74870404 has 24 divisors (see below), whose sum is σ = 150825920. Its totient is φ = 31854816.

The previous prime is 74870381. The next prime is 74870407. The reversal of 74870404 is 40407847.

It is a self number, because there is not a number n which added to its sum of digits gives 74870404.

It is not an unprimeable number, because it can be changed into a prime (74870407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5727 + ... + 13510.

Almost surely, 274870404 is an apocalyptic number.

It is an amenable number.

74870404 is an abundant number, since it is smaller than the sum of its proper divisors (75955516).

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

74870404 is a wasteful number, since it uses less digits than its factorization.

74870404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19387 (or 19385 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 74870404 is about 8652.7685742773. The cubic root of 74870404 is about 421.4732914993.

The spelling of 74870404 in words is "seventy-four million, eight hundred seventy thousand, four hundred four".

Divisors: 1 2 4 7 14 28 139 278 556 973 1946 3892 19237 38474 76948 134659 269318 538636 2673943 5347886 10695772 18717601 37435202 74870404