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70037077 = 116367007
BaseRepresentation
bin1000010110010…
…10111001010101
311212210020210211
410023022321111
5120412141302
610541045421
71510206505
oct413127125
9155706724
1070037077
1136596990
121b556871
1311682676
149431a05
156236ad7
hex42cae55

70037077 has 4 divisors (see below), whose sum is σ = 76404096. Its totient is φ = 63670060.

The previous prime is 70037063. The next prime is 70037081. The reversal of 70037077 is 77073007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70037077 - 27 = 70036949 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70037057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3183493 + ... + 3183514.

It is an arithmetic number, because the mean of its divisors is an integer number (19101024).

Almost surely, 270037077 is an apocalyptic number.

It is an amenable number.

70037077 is a deficient number, since it is larger than the sum of its proper divisors (6367019).

70037077 is a wasteful number, since it uses less digits than its factorization.

70037077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367018.

The product of its (nonzero) digits is 7203, while the sum is 31.

The square root of 70037077 is about 8368.8157465677. The cubic root of 70037077 is about 412.2012813733.

The spelling of 70037077 in words is "seventy million, thirty-seven thousand, seventy-seven".

Divisors: 1 11 6367007 70037077