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74047020 = 22351234117
BaseRepresentation
bin1000110100111…
…01111000101100
312011022222102020
410122131320230
5122424001040
611203030140
71556250345
oct432357054
9164288366
1074047020
1138885693
122096b350
1312457908
149b970cc
156779cd0
hex469de2c

74047020 has 24 divisors (see below), whose sum is σ = 207331824. Its totient is φ = 19745856.

The previous prime is 74046977. The next prime is 74047033. The reversal of 74047020 is 2074047.

It is a super-2 number, since 2×740470202 = 10965922341760800, which contains 22 as substring.

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, 616999 + ... + 617118.

It is an arithmetic number, because the mean of its divisors is an integer number (8638826).

Almost surely, 274047020 is an apocalyptic number.

It is an amenable number.

74047020 is an abundant number, since it is smaller than the sum of its proper divisors (133284804).

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

74047020 is a wasteful number, since it uses less digits than its factorization.

74047020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234129 (or 1234127 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 74047020 is about 8605.0578150295. The cubic root of 74047020 is about 419.9225480763.

The spelling of 74047020 in words is "seventy-four million, forty-seven thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1234117 2468234 3702351 4936468 6170585 7404702 12341170 14809404 18511755 24682340 37023510 74047020