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102213042 = 2321180737
BaseRepresentation
bin1100001011110…
…10010110110010
321010022221221020
412011322112302
5202131304132
614050440310
72350540131
oct605722662
9233287836
10102213042
1152773198
122a293096
1318239bb9
14d809918
158e9052c
hex617a5b2

102213042 has 16 divisors (see below), whose sum is σ = 205397472. Its totient is φ = 33909120.

The previous prime is 102213037. The next prime is 102213049. The reversal of 102213042 is 240312201.

It is not an unprimeable number, because it can be changed into a prime (102213049) 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, 39103 + ... + 41634.

It is an arithmetic number, because the mean of its divisors is an integer number (12837342).

Almost surely, 2102213042 is an apocalyptic number.

102213042 is an abundant number, since it is smaller than the sum of its proper divisors (103184430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102213042 is a wasteful number, since it uses less digits than its factorization.

102213042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80953.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 102213042 is about 10110.0465874298. The cubic root of 102213042 is about 467.5579414778.

Adding to 102213042 its reverse (240312201), we get a palindrome (342525243).

The spelling of 102213042 in words is "one hundred two million, two hundred thirteen thousand, forty-two".

Divisors: 1 2 3 6 211 422 633 1266 80737 161474 242211 484422 17035507 34071014 51106521 102213042