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3131053103 = 31101001713
BaseRepresentation
bin1011101010100000…
…0001010000101111
322002012121222101202
42322220001100233
522403022144403
61234405200115
7140406340463
oct27250012057
98065558352
103131053103
1113674415a2
1273470003b
133ab8ab459
14219b9c4a3
15134d2e688
hexbaa0142f

3131053103 has 4 divisors (see below), whose sum is σ = 3232054848. Its totient is φ = 3030051360.

The previous prime is 3131053099. The next prime is 3131053117. The reversal of 3131053103 is 3013501313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3131053103 - 22 = 3131053099 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 (3131053603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50500826 + ... + 50500887.

It is an arithmetic number, because the mean of its divisors is an integer number (808013712).

Almost surely, 23131053103 is an apocalyptic number.

3131053103 is a deficient number, since it is larger than the sum of its proper divisors (101001745).

3131053103 is a wasteful number, since it uses less digits than its factorization.

3131053103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001744.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 3131053103 is about 55955.8138444970. The cubic root of 3131053103 is about 1462.9522272380.

Adding to 3131053103 its reverse (3013501313), we get a palindrome (6144554416).

The spelling of 3131053103 in words is "three billion, one hundred thirty-one million, fifty-three thousand, one hundred three".

Divisors: 1 31 101001713 3131053103