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75070007 = 1959167401
BaseRepresentation
bin1000111100101…
…11101000110111
312020020221200122
410132113220313
5123204220012
611241002155
71601040665
oct436275067
9166227618
1075070007
1139414231
122118335b
131272542c
149d81c35
1568cce72
hex4797a37

75070007 has 16 divisors (see below), whose sum is σ = 81043200. Its totient is φ = 69321600.

The previous prime is 75070001. The next prime is 75070013. The reversal of 75070007 is 70007057.

It is an interprime number because it is at equal distance from previous prime (75070001) and next prime (75070013).

It is a cyclic number.

It is not a de Polignac number, because 75070007 - 28 = 75069751 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 (75070001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187007 + ... + 187407.

It is an arithmetic number, because the mean of its divisors is an integer number (5065200).

Almost surely, 275070007 is an apocalyptic number.

75070007 is a deficient number, since it is larger than the sum of its proper divisors (5973193).

75070007 is a wasteful number, since it uses less digits than its factorization.

75070007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 1715, while the sum is 26.

The square root of 75070007 is about 8664.2949511198. The cubic root of 75070007 is about 421.8475056028.

The spelling of 75070007 in words is "seventy-five million, seventy thousand, seven".

Divisors: 1 19 59 167 401 1121 3173 7619 9853 23659 66967 187207 449521 1272373 3951053 75070007