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102112213 = 719767761
BaseRepresentation
bin1100001011000…
…01101111010101
321010010211121211
412011201233111
5202120042323
614044341421
72346640150
oct605415725
9233124554
10102112213
1152704465
122a244871
1318203038
14d7c0c97
158e7070d
hex6161bd5

102112213 has 8 divisors (see below), whose sum is σ = 122841920. Its totient is φ = 82918080.

The previous prime is 102112211. The next prime is 102112223. The reversal of 102112213 is 312211201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102112213 - 21 = 102112211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102112193 and 102112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112211) 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, 383748 + ... + 384013.

It is an arithmetic number, because the mean of its divisors is an integer number (15355240).

Almost surely, 2102112213 is an apocalyptic number.

It is an amenable number.

102112213 is a deficient number, since it is larger than the sum of its proper divisors (20729707).

102112213 is an equidigital number, since it uses as much as digits as its factorization.

102112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767787.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102112213 is about 10105.0587826098. The cubic root of 102112213 is about 467.4041486123.

Adding to 102112213 its reverse (312211201), we get a palindrome (414323414).

The spelling of 102112213 in words is "one hundred two million, one hundred twelve thousand, two hundred thirteen".

Divisors: 1 7 19 133 767761 5374327 14587459 102112213