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74750525 = 522990021
BaseRepresentation
bin1000111010010…
…01101000111101
312012122201102222
410131021220331
5123114004100
611230055125
71565240363
oct435115075
9165581388
1074750525
11392161a3
122104a4a5
1312642ba5
149cdb633
156868485
hex4749a3d

74750525 has 6 divisors (see below), whose sum is σ = 92690682. Its totient is φ = 59800400.

The previous prime is 74750519. The next prime is 74750531. The reversal of 74750525 is 52505747.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74750519) and next prime (74750531).

It can be written as a sum of positive squares in 3 ways, for example, as 17081689 + 57668836 = 4133^2 + 7594^2 .

It is not a de Polignac number, because 74750525 - 212 = 74746429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1494986 + ... + 1495035.

It is an arithmetic number, because the mean of its divisors is an integer number (15448447).

Almost surely, 274750525 is an apocalyptic number.

It is an amenable number.

74750525 is a deficient number, since it is larger than the sum of its proper divisors (17940157).

74750525 is a wasteful number, since it uses less digits than its factorization.

74750525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990031 (or 2990026 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 74750525 is about 8645.8385943759. The cubic root of 74750525 is about 421.2482235394.

The spelling of 74750525 in words is "seventy-four million, seven hundred fifty thousand, five hundred twenty-five".

Divisors: 1 5 25 2990021 14950105 74750525