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31230134404210 = 2571572841686479
BaseRepresentation
bin1110001100111010101010…
…00100010100010001110010
311002120120102202121012202101
413012131111010110101302
513043133303401413320
6150230531540411014
76402205562324140
oct706352504242162
9132516382535671
1031230134404210
119a50697781035
1236047389a6a6a
131456cb1bba361
1479d791b08590
1539257a2dbc0a
hex1c6755114472

31230134404210 has 32 divisors (see below), whose sum is σ = 64654050792960. Its totient is φ = 10639274173632.

The previous prime is 31230134404193. The next prime is 31230134404219. The reversal of 31230134404210 is 1240443103213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31230134404219) 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, 1420832250 + ... + 1420854229.

It is an arithmetic number, because the mean of its divisors is an integer number (2020439087280).

Almost surely, 231230134404210 is an apocalyptic number.

31230134404210 is an abundant number, since it is smaller than the sum of its proper divisors (33423916388750).

31230134404210 is a wasteful number, since it uses less digits than its factorization.

31230134404210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841686650.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31230134404210 its reverse (1240443103213), we get a palindrome (32470577507423).

The spelling of 31230134404210 in words is "thirty-one trillion, two hundred thirty billion, one hundred thirty-four million, four hundred four thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 157 314 785 1099 1570 2198 5495 10990 2841686479 5683372958 14208432395 19891805353 28416864790 39783610706 99459026765 198918053530 446144777203 892289554406 2230723886015 3123013440421 4461447772030 6246026880842 15615067202105 31230134404210