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13453401492 = 2232537051049
BaseRepresentation
bin11001000011110001…
…01001110110010100
31021201120221121101100
430201320221312110
5210023032321432
610102545030100
7654250011606
oct144170516624
937646847340
1013453401492
115784104733
122735625330
1313652bc9cb
14918a71176
1553b16307c
hex321e29d94

13453401492 has 36 divisors (see below), whose sum is σ = 34648859700. Its totient is φ = 4399853952.

The previous prime is 13453401491. The next prime is 13453401527. The reversal of 13453401492 is 29410435431.

13453401492 is a `hidden beast` number, since 1 + 34 + 534 + 0 + 1 + 4 + 92 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7836498576 + 5616902916 = 88524^2 + 74946^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13453401491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3523617 + ... + 3527432.

It is an arithmetic number, because the mean of its divisors is an integer number (962468325).

Almost surely, 213453401492 is an apocalyptic number.

13453401492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13453401492 is an abundant number, since it is smaller than the sum of its proper divisors (21195458208).

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

13453401492 is a wasteful number, since it uses less digits than its factorization.

13453401492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051112 (or 7051107 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 13453401492 in words is "thirteen billion, four hundred fifty-three million, four hundred one thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 53 106 159 212 318 477 636 954 1908 7051049 14102098 21153147 28204196 42306294 63459441 84612588 126918882 253837764 373705597 747411194 1121116791 1494822388 2242233582 3363350373 4484467164 6726700746 13453401492