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129377018017 = 1347613134537
BaseRepresentation
bin111100001111101111…
…0001010000010100001
3110100221111200111000001
41320133132022002201
54104431004034032
6135233542300001
712230040336232
oct1703736120241
9410844614001
10129377018017
114a960a54595
12210a8127601
13c27aac0440
14639485d089
1535733063e7
hex1e1f78a0a1

129377018017 has 16 divisors (see below), whose sum is σ = 142320874752. Its totient is φ = 116861535360.

The previous prime is 129377018011. The next prime is 129377018021. The reversal of 129377018017 is 710810773921.

It is a cyclic number.

It is not a de Polignac number, because 129377018017 - 23 = 129377018009 is a prime.

It is a super-2 number, since 2×1293770180172 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129377018011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3728773 + ... + 3763309.

It is an arithmetic number, because the mean of its divisors is an integer number (8895054672).

Almost surely, 2129377018017 is an apocalyptic number.

It is an amenable number.

129377018017 is a deficient number, since it is larger than the sum of its proper divisors (12943856735).

129377018017 is a wasteful number, since it uses less digits than its factorization.

129377018017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40728.

The product of its (nonzero) digits is 148176, while the sum is 46.

The spelling of 129377018017 in words is "one hundred twenty-nine billion, three hundred seventy-seven million, eighteen thousand, seventeen".

Divisors: 1 13 47 611 6131 34537 79703 288157 448981 1623239 3746041 21102107 211746347 2752702511 9952078309 129377018017