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102122031 = 3113094607
BaseRepresentation
bin1100001011001…
…00001000101111
321010011100002110
412011210020233
5202120401111
614044455103
72350010604
oct605441057
9233140073
10102122031
1152710880
122a24a493
131820764b
14d7c46ab
158e735a6
hex616422f

102122031 has 8 divisors (see below), whose sum is σ = 148541184. Its totient is φ = 61892120.

The previous prime is 102122011. The next prime is 102122039. The reversal of 102122031 is 130221201.

102122031 = 21442 + 21452 + ... + 21652.

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 102122031 - 29 = 102121519 is a prime.

It is a super-2 number, since 2×1021220312 = 20857818431129922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102121998 and 102122016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122039) 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, 1547271 + ... + 1547336.

It is an arithmetic number, because the mean of its divisors is an integer number (18567648).

Almost surely, 2102122031 is an apocalyptic number.

102122031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102122031 is a deficient number, since it is larger than the sum of its proper divisors (46419153).

102122031 is a wasteful number, since it uses less digits than its factorization.

102122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094621.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102122031 is about 10105.5445672166. The cubic root of 102122031 is about 467.4191282989.

Adding to 102122031 its reverse (130221201), we get a palindrome (232343232).

The spelling of 102122031 in words is "one hundred two million, one hundred twenty-two thousand, thirty-one".

Divisors: 1 3 11 33 3094607 9283821 34040677 102122031