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13873280155 = 57396379433
BaseRepresentation
bin11001110101110100…
…10111010010011011
31022210212000122121221
430322322113102123
5211403024431110
610212344312511
71000535635630
oct147272272233
938725018557
1013873280155
11597a117799
122832172737
1314012a1417
1495872c187
15562e517da
hex33ae9749b

13873280155 has 8 divisors (see below), whose sum is σ = 19026212832. Its totient is φ = 9513106368.

The previous prime is 13873280149. The next prime is 13873280191. The reversal of 13873280155 is 55108237831.

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

It is a cyclic number.

It is not a de Polignac number, because 13873280155 - 29 = 13873279643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198189682 + ... + 198189751.

It is an arithmetic number, because the mean of its divisors is an integer number (2378276604).

Almost surely, 213873280155 is an apocalyptic number.

13873280155 is a deficient number, since it is larger than the sum of its proper divisors (5152932677).

13873280155 is an equidigital number, since it uses as much as digits as its factorization.

13873280155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396379445.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 13873280155 in words is "thirteen billion, eight hundred seventy-three million, two hundred eighty thousand, one hundred fifty-five".

Divisors: 1 5 7 35 396379433 1981897165 2774656031 13873280155