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131213011342 = 27229223207037
BaseRepresentation
bin111101000110011100…
…1111010100110001110
3110112200110102121100211
41322030321322212032
54122211012330332
6140140050113034
712323403123400
oct1721471724616
9415613377324
10131213011342
1150713362546
122151ab7b77a
13c4b12a341a
1464ca624b70
15362e5be447
hex1e8ce7a98e

131213011342 has 48 divisors (see below), whose sum is σ = 237911506560. Its totient is φ = 54051302592.

The previous prime is 131213011331. The next prime is 131213011367. The reversal of 131213011342 is 243110312131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 530248 + ... + 737284.

It is an arithmetic number, because the mean of its divisors is an integer number (4956489720).

Almost surely, 2131213011342 is an apocalyptic number.

131213011342 is a deficient number, since it is larger than the sum of its proper divisors (106698495218).

131213011342 is a wasteful number, since it uses less digits than its factorization.

131213011342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207305 (or 207298 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 131213011342 its reverse (243110312131), we get a palindrome (374323323473).

The spelling of 131213011342 in words is "one hundred thirty-one billion, two hundred thirteen million, eleven thousand, three hundred forty-two".

Divisors: 1 2 7 14 29 49 58 98 203 223 406 446 1421 1561 2842 3122 6467 10927 12934 21854 45269 90538 207037 316883 414074 633766 1449259 2898518 6004073 10144813 12008146 20289626 42028511 46169251 84057022 92338502 294199577 323184757 588399154 646369514 1338908279 2262293299 2677816558 4524586598 9372357953 18744715906 65606505671 131213011342