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122487396 = 22310207283
BaseRepresentation
bin1110100110100…
…00001001100100
322112111000010020
413103100021210
5222324044041
620053155140
73015061053
oct723201144
9275430106
10122487396
1163160659
123502bab0
131c4b8165
14123a639a
15ab47866
hex74d0264

122487396 has 12 divisors (see below), whose sum is σ = 285803952. Its totient is φ = 40829128.

The previous prime is 122487371. The next prime is 122487413. The reversal of 122487396 is 693784221.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5103630 + ... + 5103653.

It is an arithmetic number, because the mean of its divisors is an integer number (23816996).

Almost surely, 2122487396 is an apocalyptic number.

It is an amenable number.

122487396 is an abundant number, since it is smaller than the sum of its proper divisors (163316556).

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

122487396 is a wasteful number, since it uses less digits than its factorization.

122487396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10207290 (or 10207288 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 122487396 is about 11067.4024052620. The cubic root of 122487396 is about 496.6271603988.

The spelling of 122487396 in words is "one hundred twenty-two million, four hundred eighty-seven thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 10207283 20414566 30621849 40829132 61243698 122487396