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102022202131 = 199351190267
BaseRepresentation
bin101111100000011111…
…1110100001100010011
3100202100002202212001221
41133000333310030103
53132420140432011
6114511321505511
710241130260353
oct1370077641423
9322302685057
10102022202131
113a2a3967533
1217933042297
13980b75b655
144d1b858b63
1529c1a35971
hex17c0ff4313

102022202131 has 4 divisors (see below), whose sum is σ = 102073394392. Its totient is φ = 101971009872.

The previous prime is 102022202111. The next prime is 102022202143. The reversal of 102022202131 is 131202220201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102022202131 - 227 = 101887984403 is a prime.

It is a super-2 number, since 2×1020222021312 (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 (102022202111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25593141 + ... + 25597126.

It is an arithmetic number, because the mean of its divisors is an integer number (25518348598).

Almost surely, 2102022202131 is an apocalyptic number.

102022202131 is a deficient number, since it is larger than the sum of its proper divisors (51192261).

102022202131 is an equidigital number, since it uses as much as digits as its factorization.

102022202131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51192260.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102022202131 its reverse (131202220201), we get a palindrome (233224422332).

The spelling of 102022202131 in words is "one hundred two billion, twenty-two million, two hundred two thousand, one hundred thirty-one".

Divisors: 1 1993 51190267 102022202131