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131013333120 = 2735283241117
BaseRepresentation
bin111101000000100000…
…0001101000010000000
3110112011112200220100010
41322001000031002000
54121303403124440
6140104154224520
712315426646215
oct1720100150200
9415145626303
10131013333120
115062067a31a
1221484125140
13c47bacc727
1464abcc7b0c
15361bcca580
hex1e8100d080

131013333120 has 128 divisors (see below), whose sum is σ = 419082373440. Its totient is φ = 34813292544.

The previous prime is 131013333083. The next prime is 131013333127. The reversal of 131013333120 is 21333310131.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (131013333127) 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, 422802 + ... + 663918.

Almost surely, 2131013333120 is an apocalyptic number.

131013333120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131013333120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209541186720).

131013333120 is an abundant number, since it is smaller than the sum of its proper divisors (288069040320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131013333120 is a wasteful number, since it uses less digits than its factorization.

131013333120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241422 (or 241410 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 131013333120 its reverse (21333310131), we get a palindrome (152346643251).

The spelling of 131013333120 in words is "one hundred thirty-one billion, thirteen million, three hundred thirty-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 283 320 384 480 566 640 849 960 1132 1415 1698 1920 2264 2830 3396 4245 4528 5660 6792 8490 9056 11320 13584 16980 18112 22640 27168 33960 36224 45280 54336 67920 90560 108672 135840 181120 241117 271680 482234 543360 723351 964468 1205585 1446702 1928936 2411170 2893404 3616755 3857872 4822340 5786808 7233510 7715744 9644680 11573616 14467020 15431488 19289360 23147232 28934040 30862976 38578720 46294464 57868080 68236111 77157440 92588928 115736160 136472222 154314880 204708333 231472320 272944444 341180555 409416666 462944640 545888888 682361110 818833332 1023541665 1091777776 1364722220 1637666664 2047083330 2183555552 2729444440 3275333328 4094166660 4367111104 5458888880 6550666656 8188333320 8734222208 10917777760 13101333312 16376666640 21835555520 26202666624 32753333280 43671111040 65506666560 131013333120