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13457746147 = 97257539843
BaseRepresentation
bin11001000100010010…
…01110100011100011
31021201220010100010111
430202021032203203
5210030140334042
610103222112151
7654331645336
oct144211164343
937656110114
1013457746147
11578660195a
122736b7b657
131366181401
1491948261d
1553b720517
hex32224e8e3

13457746147 has 8 divisors (see below), whose sum is σ = 13649415696. Its totient is φ = 13267156992.

The previous prime is 13457746109. The next prime is 13457746157. The reversal of 13457746147 is 74164775431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13457746147 is a prime.

It is a super-2 number, since 2×134577461472 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13457746147.

It is not an unprimeable number, because it can be changed into a prime (13457746157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244993 + ... + 294850.

It is an arithmetic number, because the mean of its divisors is an integer number (1706176962).

Almost surely, 213457746147 is an apocalyptic number.

13457746147 is a deficient number, since it is larger than the sum of its proper divisors (191669549).

13457746147 is an equidigital number, since it uses as much as digits as its factorization.

13457746147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540197.

The product of its digits is 1975680, while the sum is 49.

The spelling of 13457746147 in words is "thirteen billion, four hundred fifty-seven million, seven hundred forty-six thousand, one hundred forty-seven".

Divisors: 1 97 257 24929 539843 52364771 138739651 13457746147