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31010313142 = 2311393598319
BaseRepresentation
bin11100111000010110…
…111101001110110110
32222001011101010110101
4130320112331032312
51002002120010032
622125042344314
72145315212134
oct347026751666
988034333411
1031010313142
1112173571276
12601535b09a
132c027a3523
1417026bc754
15c17695de7
hex7385bd3b6

31010313142 has 16 divisors (see below), whose sum is σ = 48361420800. Its totient is φ = 14897036520.

The previous prime is 31010313133. The next prime is 31010313149. The reversal of 31010313142 is 24131301013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010313149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790542 + ... + 1807777.

It is an arithmetic number, because the mean of its divisors is an integer number (3022588800).

Almost surely, 231010313142 is an apocalyptic number.

31010313142 is a deficient number, since it is larger than the sum of its proper divisors (17351107658).

31010313142 is a wasteful number, since it uses less digits than its factorization.

31010313142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598491.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31010313142 its reverse (24131301013), we get a palindrome (55141614155).

The spelling of 31010313142 in words is "thirty-one billion, ten million, three hundred thirteen thousand, one hundred forty-two".

Divisors: 1 2 31 62 139 278 4309 8618 3598319 7196638 111547889 223095778 500166341 1000332682 15505156571 31010313142