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13121011023232 = 27722091997931
BaseRepresentation
bin1011111011101111100100…
…1100110111110110000000
31201110100121211002102220211
42332323321030313312000
53204433312310220412
643523413110443504
72522650612335400
oct276737114676600
951410554072824
1013121011023232
1141a9653727602
12157ab34063594
137423c946c188
143350bb748800
1517b493299ca7
hexbeef9337d80

13121011023232 has 48 divisors (see below), whose sum is σ = 30407189941620. Its totient is φ = 5623290435840.

The previous prime is 13121011023227. The next prime is 13121011023257. The reversal of 13121011023232 is 23232011012131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1045992694 + ... + 1046005237.

Almost surely, 213121011023232 is an apocalyptic number.

It is an amenable number.

13121011023232 is an abundant number, since it is smaller than the sum of its proper divisors (17286178918388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121011023232 is an equidigital number, since it uses as much as digits as its factorization.

13121011023232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091997959 (or 2091997940 counting only the distinct ones).

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

Adding to 13121011023232 its reverse (23232011012131), we get a palindrome (36353022035363).

The spelling of 13121011023232 in words is "thirteen trillion, one hundred twenty-one billion, eleven million, twenty-three thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 392 448 784 896 1568 3136 6272 2091997931 4183995862 8367991724 14643985517 16735983448 29287971034 33471966896 58575942068 66943933792 102507898619 117151884136 133887867584 205015797238 234303768272 267775735168 410031594476 468607536544 820063188952 937215073088 1640126377904 1874430146176 3280252755808 6560505511616 13121011023232