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125927820 = 223251936821
BaseRepresentation
bin1111000000110…
…00000110001100
322202221210111100
413200120012030
5224214142240
620255023100
73056240334
oct740300614
9282853440
10125927820
11650a0487
123620aa90
1320121105
1412a200c4
15b0c6e30
hex781818c

125927820 has 72 divisors (see below), whose sum is σ = 402096240. Its totient is φ = 31812480.

The previous prime is 125927807. The next prime is 125927821. The reversal of 125927820 is 28729521.

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

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (125927821) 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, 14991 + ... + 21830.

It is an arithmetic number, because the mean of its divisors is an integer number (5584670).

Almost surely, 2125927820 is an apocalyptic number.

125927820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125927820 is an abundant number, since it is smaller than the sum of its proper divisors (276168420).

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

125927820 is a wasteful number, since it uses less digits than its factorization.

125927820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36855 (or 36850 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 125927820 is about 11221.7565469939. The cubic root of 125927820 is about 501.2340450930.

The spelling of 125927820 in words is "one hundred twenty-five million, nine hundred twenty-seven thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 171 180 190 228 285 342 380 570 684 855 1140 1710 3420 36821 73642 110463 147284 184105 220926 331389 368210 441852 552315 662778 699599 736420 1104630 1325556 1399198 1656945 2098797 2209260 2798396 3313890 3497995 4197594 6296391 6627780 6995990 8395188 10493985 12592782 13991980 20987970 25185564 31481955 41975940 62963910 125927820