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122657230 = 2559920477
BaseRepresentation
bin1110100111110…
…01100111001110
322112210122002101
413103321213032
5222400012410
620100545314
73016366153
oct723714716
9275718071
10122657230
1163267213
12350b223a
131c547557
141240c22a
15ab7cd3a
hex74f99ce

122657230 has 16 divisors (see below), whose sum is σ = 221162400. Its totient is φ = 48978592.

The previous prime is 122657207. The next prime is 122657231. The reversal of 122657230 is 32756221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122657231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4249 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (13822650).

Almost surely, 2122657230 is an apocalyptic number.

122657230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122657230 is a deficient number, since it is larger than the sum of its proper divisors (98505170).

122657230 is a wasteful number, since it uses less digits than its factorization.

122657230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21083.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 122657230 is about 11075.0724602596. The cubic root of 122657230 is about 496.8565859769.

The spelling of 122657230 in words is "one hundred twenty-two million, six hundred fifty-seven thousand, two hundred thirty".

Divisors: 1 2 5 10 599 1198 2995 5990 20477 40954 102385 204770 12265723 24531446 61328615 122657230