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131200000211230 = 25314386311404937
BaseRepresentation
bin11101110101001101100001…
…011010000011100100011110
3122012112121010121010010111121
4131311031201122003210132
5114144040100023224410
61143012240435041154
736430613212204366
oct3565154132034436
9565477117103447
10131200000211230
1138893675818a95
121286b5327401ba
135829150c15082
14245818473d9a6
151027c2e2c69da
hex77536168391e

131200000211230 has 64 divisors (see below), whose sum is σ = 249736390852608. Its totient is φ = 49548516353280.

The previous prime is 131200000211197. The next prime is 131200000211237. The reversal of 131200000211230 is 32112000002131.

It is a super-2 number, since 2×1312000002112302 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131200000211237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5801322 + ... + 17206258.

It is an arithmetic number, because the mean of its divisors is an integer number (3902131107072).

Almost surely, 2131200000211230 is an apocalyptic number.

131200000211230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131200000211230 is a deficient number, since it is larger than the sum of its proper divisors (118536390641378).

131200000211230 is a wasteful number, since it uses less digits than its factorization.

131200000211230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11405881.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131200000211230 its reverse (32112000002131), we get a palindrome (163312000213361).

The spelling of 131200000211230 in words is "one hundred thirty-one trillion, two hundred billion, two hundred eleven thousand, two hundred thirty".

Divisors: 1 2 5 10 31 43 62 86 155 215 310 430 863 1333 1726 2666 4315 6665 8630 13330 26753 37109 53506 74218 133765 185545 267530 371090 1150379 2300758 5751895 11404937 11503790 22809874 57024685 114049370 353553047 490412291 707106094 980824582 1767765235 2452061455 3535530470 4904122910 9842460631 15202781021 19684921262 30405562042 49212303155 76013905105 98424606310 152027810210 305116279561 423225807133 610232559122 846451614266 1525581397805 2116129035665 3051162795610 4232258071330 13120000021123 26240000042246 65600000105615 131200000211230