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126106988 = 2272643403
BaseRepresentation
bin1111000010000…
…11110101101100
322210021220021012
413201003311230
5224240410423
620302524352
73060614600
oct741036554
9283256235
10126106988
1165203057
12362966b8
1320184827
1412a69500
15b110078
hex7843d6c

126106988 has 18 divisors (see below), whose sum is σ = 256718196. Its totient is φ = 54045768.

The previous prime is 126106979. The next prime is 126106991. The reversal of 126106988 is 889601621.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321506 + ... + 321897.

It is an arithmetic number, because the mean of its divisors is an integer number (14262122).

Almost surely, 2126106988 is an apocalyptic number.

It is an amenable number.

126106988 is an abundant number, since it is smaller than the sum of its proper divisors (130611208).

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

126106988 is a wasteful number, since it uses less digits than its factorization.

126106988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643421 (or 643412 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 126106988 is about 11229.7367734066. The cubic root of 126106988 is about 501.4716482532.

The spelling of 126106988 in words is "one hundred twenty-six million, one hundred six thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 643403 1286806 2573612 4503821 9007642 18015284 31526747 63053494 126106988