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102022230031 = 137237434397
BaseRepresentation
bin101111100000011111…
…1111011000000001111
3100202100002211021100021
41133000333323000033
53132420142330111
6114511322243011
710241130434611
oct1370077730017
9322302737307
10102022230031
113a2a3986497
1217933056467
13980b76b267
144d1b864db1
1529c1a3dd71
hex17c0ffb00f

102022230031 has 4 divisors (see below), whose sum is σ = 102029678152. Its totient is φ = 102014781912.

The previous prime is 102022229983. The next prime is 102022230041. The reversal of 102022230031 is 130032220201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102022230031 is a prime.

It is a super-2 number, since 2×1020222300312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102022229987 and 102022230014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022230041) 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, 3703476 + ... + 3730921.

It is an arithmetic number, because the mean of its divisors is an integer number (25507419538).

Almost surely, 2102022230031 is an apocalyptic number.

102022230031 is a deficient number, since it is larger than the sum of its proper divisors (7448121).

102022230031 is an equidigital number, since it uses as much as digits as its factorization.

102022230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448120.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 102022230031 its reverse (130032220201), we get a palindrome (232054450232).

The spelling of 102022230031 in words is "one hundred two billion, twenty-two million, two hundred thirty thousand, thirty-one".

Divisors: 1 13723 7434397 102022230031