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122605868 = 227113112841
BaseRepresentation
bin1110100111011…
…01000100101100
322112201000122002
413103231010230
5222341341433
620055511432
73016063340
oct723550454
9275630562
10122605868
1163231670
1235088578
131c52a068
14123d7620
15ab6c9e8
hex74ed12c

122605868 has 48 divisors (see below), whose sum is σ = 276154368. Its totient is φ = 46224000.

The previous prime is 122605859. The next prime is 122605877. The reversal of 122605868 is 868506221.

It is an interprime number because it is at equal distance from previous prime (122605859) and next prime (122605877).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3128 + ... + 15968.

It is an arithmetic number, because the mean of its divisors is an integer number (5753216).

Almost surely, 2122605868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122605868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138077184).

122605868 is an abundant number, since it is smaller than the sum of its proper divisors (153548500).

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

122605868 is a wasteful number, since it uses less digits than its factorization.

122605868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894 (or 12892 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 122605868 is about 11072.7534064477. The cubic root of 122605868 is about 496.7872243614.

The spelling of 122605868 in words is "one hundred twenty-two million, six hundred five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 11 14 22 28 31 44 62 77 124 154 217 308 341 434 682 868 1364 2387 4774 9548 12841 25682 51364 89887 141251 179774 282502 359548 398071 565004 796142 988757 1592284 1977514 2786497 3955028 4378781 5572994 8757562 11145988 17515124 30651467 61302934 122605868