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131210323004 = 2234794531933
BaseRepresentation
bin111101000110010111…
…1101010010000111100
3110112200021101000122202
41322030233222100330
54122204320314004
6140135512331032
712323341225565
oct1721457522074
9415607330582
10131210323004
1150711896782
122151a0a3a78
13c4b08718a7
1464ca12516c
15362e23cb1e
hex1e8cbea43c

131210323004 has 12 divisors (see below), whose sum is σ = 230279791224. Its totient is φ = 65416096944.

The previous prime is 131210322959. The next prime is 131210323031. The reversal of 131210323004 is 400323012131.

It is a super-2 number, since 2×1312103230042 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47264579 + ... + 47267354.

It is an arithmetic number, because the mean of its divisors is an integer number (19189982602).

Almost surely, 2131210323004 is an apocalyptic number.

It is an amenable number.

131210323004 is a deficient number, since it is larger than the sum of its proper divisors (99069468220).

131210323004 is a wasteful number, since it uses less digits than its factorization.

131210323004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94532284 (or 94532282 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131210323004 its reverse (400323012131), we get a palindrome (531533335135).

The spelling of 131210323004 in words is "one hundred thirty-one billion, two hundred ten million, three hundred twenty-three thousand, four".

Divisors: 1 2 4 347 694 1388 94531933 189063866 378127732 32802580751 65605161502 131210323004