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74899998 = 2331387037
BaseRepresentation
bin1000111011011…
…10001000011110
312012221022111000
410131232020132
5123133244443
611233211130
71566432225
oct435561036
9165838430
1074899998
1139308528
1221100aa6
1312695c34
149d39cbc
1568978d3
hex476e21e

74899998 has 16 divisors (see below), whose sum is σ = 166444560. Its totient is φ = 24966648.

The previous prime is 74899939. The next prime is 74900003. The reversal of 74899998 is 89999847.

It is a super-2 number, since 2×748999982 = 11220019400800008, which 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 7 ways as a sum of consecutive naturals, for example, 693465 + ... + 693572.

It is an arithmetic number, because the mean of its divisors is an integer number (10402785).

Almost surely, 274899998 is an apocalyptic number.

74899998 is an abundant number, since it is smaller than the sum of its proper divisors (91544562).

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

74899998 is a wasteful number, since it uses less digits than its factorization.

74899998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387048 (or 1387042 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 74899998 is about 8654.4784938204. The cubic root of 74899998 is about 421.5288160540.

The spelling of 74899998 in words is "seventy-four million, eight hundred ninety-nine thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 9 18 27 54 1387037 2774074 4161111 8322222 12483333 24966666 37449999 74899998