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125864500 = 22531391811
BaseRepresentation
bin1111000000010…
…00101000110100
322202211120122011
413200020220310
5224210131000
620253414004
73055554616
oct740105064
9282746564
10125864500
1165057953
123619a304
13200cb348
1412a04db6
15b0b32ba
hex7808a34

125864500 has 48 divisors (see below), whose sum is σ = 277018560. Its totient is φ = 49956000.

The previous prime is 125864489. The next prime is 125864513. The reversal of 125864500 is 5468521.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68595 + ... + 70405.

It is an arithmetic number, because the mean of its divisors is an integer number (5771220).

Almost surely, 2125864500 is an apocalyptic number.

125864500 is a gapful number since it is divisible by the number (10) 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 125864500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138509280).

125864500 is an abundant number, since it is smaller than the sum of its proper divisors (151154060).

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

125864500 is a wasteful number, since it uses less digits than its factorization.

125864500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 125864500 is about 11218.9348870559. The cubic root of 125864500 is about 501.1500195488.

The spelling of 125864500 in words is "one hundred twenty-five million, eight hundred sixty-four thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 139 250 278 500 556 695 1390 1811 2780 3475 3622 6950 7244 9055 13900 17375 18110 34750 36220 45275 69500 90550 181100 226375 251729 452750 503458 905500 1006916 1258645 2517290 5034580 6293225 12586450 25172900 31466125 62932250 125864500