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1312021401310 = 253110938828689
BaseRepresentation
bin10011000101111010100…
…100011100111011011110
311122102120000201220122201
4103011322210130323132
5132444004434320220
62442422340002114
7163535053621534
oct23057244347336
94572500656581
101312021401310
114664749709a4
1219234139033a
1396952813159
1447705d78154
15241de4c1d0a
hex1317a91cede

1312021401310 has 32 divisors (see below), whose sum is σ = 2460185798400. Its totient is φ = 503219796480.

The previous prime is 1312021401307. The next prime is 1312021401349. The reversal of 1312021401310 is 131041202131.

It is a super-2 number, since 2×13120214013102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 19380555 + ... + 19448134.

It is an arithmetic number, because the mean of its divisors is an integer number (76880806200).

Almost surely, 21312021401310 is an apocalyptic number.

1312021401310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312021401310 is a deficient number, since it is larger than the sum of its proper divisors (1148164397090).

1312021401310 is a wasteful number, since it uses less digits than its factorization.

1312021401310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38828836.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1312021401310 its reverse (131041202131), we get a palindrome (1443062603441).

The spelling of 1312021401310 in words is "one trillion, three hundred twelve billion, twenty-one million, four hundred one thousand, three hundred ten".

Divisors: 1 2 5 10 31 62 109 155 218 310 545 1090 3379 6758 16895 33790 38828689 77657378 194143445 388286890 1203689359 2407378718 4232327101 6018446795 8464654202 12036893590 21161635505 42323271010 131202140131 262404280262 656010700655 1312021401310