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74705036 = 22719140423
BaseRepresentation
bin1000111001111…
…10100010001100
312012120102001012
410130332202030
5123111030121
611225104352
71564660640
oct434764214
9165512035
1074705036
1139194aaa
12210280b8
1312628283
149cc8c20
156859c5b
hex473e88c

74705036 has 24 divisors (see below), whose sum is σ = 157274880. Its totient is φ = 30331152.

The previous prime is 74705011. The next prime is 74705107. The reversal of 74705036 is 63050747.

It is a super-2 number, since 2×747050362 = 11161684807522592, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 74704993 and 74705011.

It is an unprimeable number.

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, 69680 + ... + 70743.

It is an arithmetic number, because the mean of its divisors is an integer number (6553120).

Almost surely, 274705036 is an apocalyptic number.

74705036 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

74705036 is an abundant number, since it is smaller than the sum of its proper divisors (82569844).

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

74705036 is a wasteful number, since it uses less digits than its factorization.

74705036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140453 (or 140451 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 74705036 is about 8643.2075064758. The cubic root of 74705036 is about 421.1627568097.

The spelling of 74705036 in words is "seventy-four million, seven hundred five thousand, thirty-six".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 140423 280846 561692 982961 1965922 2668037 3931844 5336074 10672148 18676259 37352518 74705036