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3121576073 = 71145198971
BaseRepresentation
bin1011101000001111…
…0111100010001001
322001112210111100122
42322003313202021
522343110413243
61233430113025
7140232646610
oct27203674211
98045714318
103121576073
111362059340
127314ab775
133a9940945
14218812877
151340ab668
hexba0f7889

3121576073 has 16 divisors (see below), whose sum is σ = 3893130240. Its totient is φ = 2431587600.

The previous prime is 3121576067. The next prime is 3121576147. The reversal of 3121576073 is 3706751213.

3121576073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3121576073 - 222 = 3117381769 is a prime.

It is a super-2 number, since 2×31215760732 = 19488474359052202658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121576673) 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, 343478 + ... + 352448.

It is an arithmetic number, because the mean of its divisors is an integer number (243320640).

Almost surely, 23121576073 is an apocalyptic number.

It is an amenable number.

3121576073 is a deficient number, since it is larger than the sum of its proper divisors (771554167).

3121576073 is a wasteful number, since it uses less digits than its factorization.

3121576073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13508.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 3121576073 is about 55871.0665103146. The cubic root of 3121576073 is about 1461.4747207361.

The spelling of 3121576073 in words is "three billion, one hundred twenty-one million, five hundred seventy-six thousand, seventy-three".

Divisors: 1 7 11 77 4519 8971 31633 49709 62797 98681 347963 690767 40539949 283779643 445939439 3121576073