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268238130483351 = 37192983272253487
BaseRepresentation
bin111100111111011000001110…
…011110111001000010010111
31022011202022111111220220200110
4330333120032132321002113
5240124303142400431401
62350254521310414103
7110333364634221450
oct7477301636710227
91264668444826613
10268238130483351
1178518174782346
122610241b201333
13b6899936b3372
144a34b1ac78127
1521027518279d6
hexf3f60e7b9097

268238130483351 has 32 divisors (see below), whose sum is σ = 430258283560960. Its totient is φ = 145211068318176.

The previous prime is 268238130483347. The next prime is 268238130483359. The reversal of 268238130483351 is 153384031832862.

It is not a de Polignac number, because 268238130483351 - 22 = 268238130483347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268238130483291 and 268238130483300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268238130483359) 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, 117905730 + ... + 120159216.

It is an arithmetic number, because the mean of its divisors is an integer number (13445571361280).

Almost surely, 2268238130483351 is an apocalyptic number.

268238130483351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

268238130483351 is a deficient number, since it is larger than the sum of its proper divisors (162020153077609).

268238130483351 is a wasteful number, since it uses less digits than its factorization.

268238130483351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551843.

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 268238130483351 in words is "two hundred sixty-eight trillion, two hundred thirty-eight billion, one hundred thirty million, four hundred eighty-three thousand, three hundred fifty-one".

Divisors: 1 3 7 19 21 57 133 399 298327 894981 2088289 2253487 5668213 6264867 6760461 15774409 17004639 39677491 42816253 47323227 119032473 128448759 299713771 899141313 672276016249 2016828048747 4705932113743 12773244308731 14117796341229 38319732926193 89412710161117 268238130483351