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122423870 = 2526346549
BaseRepresentation
bin1110100110000…
…00101000111110
322112100202222102
413103000220332
5222320030440
620051545102
73014404622
oct723005076
9275322872
10122423870
1163117958
1234bbb192
131c49527a
141238b182
15ab33b15
hex74c0a3e

122423870 has 16 divisors (see below), whose sum is σ = 221205600. Its totient is φ = 48782304.

The previous prime is 122423863. The next prime is 122423893. The reversal of 122423870 is 78324221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20645 + ... + 25904.

It is an arithmetic number, because the mean of its divisors is an integer number (13825350).

Almost surely, 2122423870 is an apocalyptic number.

122423870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122423870 is a deficient number, since it is larger than the sum of its proper divisors (98781730).

122423870 is a wasteful number, since it uses less digits than its factorization.

122423870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46819.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 122423870 is about 11064.5320732510. The cubic root of 122423870 is about 496.5412898150.

The spelling of 122423870 in words is "one hundred twenty-two million, four hundred twenty-three thousand, eight hundred seventy".

Divisors: 1 2 5 10 263 526 1315 2630 46549 93098 232745 465490 12242387 24484774 61211935 122423870