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102156142313 = 2931671112291
BaseRepresentation
bin101111100100011111…
…0110000011011101001
3100202200102210201110102
41133020332300123221
53133203433023223
6114532504355145
710244344611461
oct1371076603351
9322612721412
10102156142313
113a36252a7a5
121796ba75ab5
1398304266b4
144d31562ba1
1529cd691928
hex17c8fb06e9

102156142313 has 8 divisors (see below), whose sum is σ = 105712231680. Its totient is φ = 98602283920.

The previous prime is 102156142289. The next prime is 102156142373. The reversal of 102156142313 is 313241651201.

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-102156142313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102156142373) 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, 464303 + ... + 647988.

It is an arithmetic number, because the mean of its divisors is an integer number (13214028960).

Almost surely, 2102156142313 is an apocalyptic number.

It is an amenable number.

102156142313 is a deficient number, since it is larger than the sum of its proper divisors (3556089367).

102156142313 is a wasteful number, since it uses less digits than its factorization.

102156142313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115487.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 102156142313 its reverse (313241651201), we get a palindrome (415397793514).

The spelling of 102156142313 in words is "one hundred two billion, one hundred fifty-six million, one hundred forty-two thousand, three hundred thirteen".

Divisors: 1 29 3167 91843 1112291 32256439 3522625597 102156142313