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75147340 = 2253757367
BaseRepresentation
bin1000111101010…
…10100001001100
312020101212202211
410132222201030
5123214203330
611242400204
71601512312
oct436524114
9166355684
1075147340
1139467344
1221200064
13127516a8
149da20b2
1568e5d2a
hex47aa84c

75147340 has 12 divisors (see below), whose sum is σ = 157809456. Its totient is φ = 30058928.

The previous prime is 75147283. The next prime is 75147341. The reversal of 75147340 is 4374157.

It is not an unprimeable number, because it can be changed into a prime (75147341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1878664 + ... + 1878703.

It is an arithmetic number, because the mean of its divisors is an integer number (13150788).

Almost surely, 275147340 is an apocalyptic number.

It is an amenable number.

75147340 is an abundant number, since it is smaller than the sum of its proper divisors (82662116).

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

75147340 is a wasteful number, since it uses less digits than its factorization.

75147340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757376 (or 3757374 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 75147340 is about 8668.7565428959. The cubic root of 75147340 is about 421.9923106046.

The spelling of 75147340 in words is "seventy-five million, one hundred forty-seven thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 3757367 7514734 15029468 18786835 37573670 75147340