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75070039 = 1135319333
BaseRepresentation
bin1000111100101…
…11101001010111
312020020221201211
410132113221113
5123204220124
611241002251
71601041042
oct436275127
9166227654
1075070039
1139414260
1221183387
1312725455
149d81c59
1568cce94
hex4797a57

75070039 has 8 divisors (see below), whose sum is σ = 82130832. Its totient is φ = 68048640.

The previous prime is 75070033. The next prime is 75070043. The reversal of 75070039 is 93007057.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75070039 - 215 = 75037271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75070033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5784 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (10266354).

Almost surely, 275070039 is an apocalyptic number.

75070039 is a deficient number, since it is larger than the sum of its proper divisors (7060793).

75070039 is a wasteful number, since it uses less digits than its factorization.

75070039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19697.

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 75070039 is about 8664.2967977788. The cubic root of 75070039 is about 421.8475655429.

The spelling of 75070039 in words is "seventy-five million, seventy thousand, thirty-nine".

Divisors: 1 11 353 3883 19333 212663 6824549 75070039