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102057122 = 2131389531
BaseRepresentation
bin1100001010101…
…00010010100010
321010001001001102
412011110102202
5202111311442
614043234402
72346320426
oct605242242
9233031042
10102057122
1152677032
122a218a02
13181b3c3b
14d7a8b86
158e5e232
hex61544a2

102057122 has 8 divisors (see below), whose sum is σ = 154254672. Its totient is φ = 50638900.

The previous prime is 102057121. The next prime is 102057169. The reversal of 102057122 is 221750201.

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

It is a junction number, because it is equal to n+sod(n) for n = 102057094 and 102057103.

It is not an unprimeable number, because it can be changed into a prime (102057121) 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, 194504 + ... + 195027.

It is an arithmetic number, because the mean of its divisors is an integer number (19281834).

Almost surely, 2102057122 is an apocalyptic number.

102057122 is a deficient number, since it is larger than the sum of its proper divisors (52197550).

102057122 is a wasteful number, since it uses less digits than its factorization.

102057122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389664.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 102057122 is about 10102.3325029421. The cubic root of 102057122 is about 467.3200764157.

The spelling of 102057122 in words is "one hundred two million, fifty-seven thousand, one hundred twenty-two".

Divisors: 1 2 131 262 389531 779062 51028561 102057122