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31031133230210 = 25711093109128971
BaseRepresentation
bin1110000111000111111111…
…01011000101010010000010
311001212112210000210010221112
413003203333223011102002
513031403230101331320
6145555301130523322
76351632260261241
oct703437753052202
9131775700703845
1031031133230210
119984258801673
12359205b896542
1314412b97b6ba9
14793cb454a958
1538c2ce8b5ec5
hex1c38ffac5482

31031133230210 has 64 divisors (see below), whose sum is σ = 57181232275200. Its totient is φ = 12121364102400.

The previous prime is 31031133230099. The next prime is 31031133230261. The reversal of 31031133230210 is 1203233113013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240541025 + ... + 240669995.

It is an arithmetic number, because the mean of its divisors is an integer number (893456754300).

Almost surely, 231031133230210 is an apocalyptic number.

31031133230210 is a deficient number, since it is larger than the sum of its proper divisors (26150099044990).

31031133230210 is a wasteful number, since it uses less digits than its factorization.

31031133230210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132267.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31031133230210 its reverse (1203233113013), we get a palindrome (32234366343223).

The spelling of 31031133230210 in words is "thirty-one trillion, thirty-one billion, one hundred thirty-three million, two hundred thirty thousand, two hundred ten".

Divisors: 1 2 5 10 71 109 142 218 355 545 710 1090 3109 6218 7739 15478 15545 31090 38695 77390 128971 220739 257942 338881 441478 644855 677762 1103695 1289710 1694405 2207390 3388810 9156941 14057839 18313882 24060551 28115678 45784705 48121102 70289195 91569410 120302755 140578390 240605510 400970839 801941678 998106569 1996213138 2004854195 4009708390 4990532845 9981065690 28468929569 43705821451 56937859138 87411642902 142344647845 218529107255 284689295690 437058214510 3103113323021 6206226646042 15515566615105 31031133230210