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3131023130 = 25501162483
BaseRepresentation
bin1011101010011111…
…1001111100011010
322002012120110021122
42322213321330122
522403020220010
61234404405242
7140406154214
oct27247717432
98065513248
103131023130
111367421024
127346a6822
133ab89a911
14219b915b4
15134d25855
hexba9f9f1a

3131023130 has 16 divisors (see below), whose sum is σ = 5637056544. Its totient is φ = 1252139280.

The previous prime is 3131023123. The next prime is 3131023141. The reversal of 3131023130 is 313201313.

It is a junction number, because it is equal to n+sod(n) for n = 3131023099 and 3131023108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18869 + ... + 81351.

It is an arithmetic number, because the mean of its divisors is an integer number (352316034).

Almost surely, 23131023130 is an apocalyptic number.

3131023130 is a deficient number, since it is larger than the sum of its proper divisors (2506033414).

3131023130 is a wasteful number, since it uses less digits than its factorization.

3131023130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67501.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 3131023130 is about 55955.5460164585. The cubic root of 3131023130 is about 1462.9475590315.

Adding to 3131023130 its reverse (313201313), we get a palindrome (3444224443).

The spelling of 3131023130 in words is "three billion, one hundred thirty-one million, twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 5011 10022 25055 50110 62483 124966 312415 624830 313102313 626204626 1565511565 3131023130