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3131043430 = 251013100043
BaseRepresentation
bin1011101010011111…
…1110111001100110
322002012121111010111
42322213332321212
522403021342210
61234405043234
7140406300334
oct27247767146
98065544114
103131043430
1113674352a9
127346b651a
133ab8a6c28
14219b98b54
15134d2b88a
hexba9fee66

3131043430 has 16 divisors (see below), whose sum is σ = 5691680784. Its totient is φ = 1240016800.

The previous prime is 3131043403. The next prime is 3131043469. The reversal of 3131043430 is 343401313.

It is a happy number.

It is a congruent number.

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, 1549012 + ... + 1551031.

It is an arithmetic number, because the mean of its divisors is an integer number (355730049).

Almost surely, 23131043430 is an apocalyptic number.

3131043430 is a deficient number, since it is larger than the sum of its proper divisors (2560637354).

3131043430 is a wasteful number, since it uses less digits than its factorization.

3131043430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100151.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 3131043430 is about 55955.7274101588. The cubic root of 3131043430 is about 1462.9507207000.

Adding to 3131043430 its reverse (343401313), we get a palindrome (3474444743).

The spelling of 3131043430 in words is "three billion, one hundred thirty-one million, forty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 101 202 505 1010 3100043 6200086 15500215 31000430 313104343 626208686 1565521715 3131043430