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126910872 = 233211236967
BaseRepresentation
bin1111001000010…
…00000110011000
322211210201222200
413210020012120
5224442121442
620332050200
73100503354
oct744100630
9284721880
10126910872
1165702020
1236603960
13203a66ba
1412bd8464
15b21d34c
hex7908198

126910872 has 96 divisors (see below), whose sum is σ = 391322880. Its totient is φ = 36780480.

The previous prime is 126910859. The next prime is 126910877. The reversal of 126910872 is 278019621.

It is a super-2 number, since 2×1269108722 = 32212738863600768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126910877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14733 + ... + 21699.

It is an arithmetic number, because the mean of its divisors is an integer number (4076280).

Almost surely, 2126910872 is an apocalyptic number.

126910872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126910872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195661440).

126910872 is an abundant number, since it is smaller than the sum of its proper divisors (264412008).

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

126910872 is a wasteful number, since it uses less digits than its factorization.

126910872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7013 (or 7006 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 126910872 is about 11265.4725599950. The cubic root of 126910872 is about 502.5349556139.

The spelling of 126910872 in words is "one hundred twenty-six million, nine hundred ten thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 23 24 33 36 44 46 66 69 72 88 92 99 132 138 184 198 207 253 264 276 396 414 506 552 759 792 828 1012 1518 1656 2024 2277 3036 4554 6072 6967 9108 13934 18216 20901 27868 41802 55736 62703 76637 83604 125406 153274 160241 167208 229911 250812 306548 320482 459822 480723 501624 613096 640964 689733 919644 961446 1281928 1379466 1442169 1762651 1839288 1922892 2758932 2884338 3525302 3845784 5287953 5517864 5768676 7050604 10575906 11537352 14101208 15863859 21151812 31727718 42303624 63455436 126910872