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125280072 = 233217195387
BaseRepresentation
bin1110111011110…
…01111101001000
322201201212221200
413131321331020
5224032430242
620233104200
73050602011
oct735717510
9281655850
10125280072
1164798855
1235b58060
131cc55328
14128d2008
15aeea04c
hex7779f48

125280072 has 96 divisors (see below), whose sum is σ = 378237600. Its totient is φ = 37228032.

The previous prime is 125280041. The next prime is 125280073. The reversal of 125280072 is 270082521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125280073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20563 + ... + 25949.

It is an arithmetic number, because the mean of its divisors is an integer number (3939975).

Almost surely, 2125280072 is an apocalyptic number.

125280072 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 125280072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189118800).

125280072 is an abundant number, since it is smaller than the sum of its proper divisors (252957528).

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

125280072 is a wasteful number, since it uses less digits than its factorization.

125280072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435 (or 5428 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 125280072 is about 11192.8580800437. The cubic root of 125280072 is about 500.3731507810.

The spelling of 125280072 in words is "one hundred twenty-five million, two hundred eighty thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 17 18 19 24 34 36 38 51 57 68 72 76 102 114 136 152 153 171 204 228 306 323 342 408 456 612 646 684 969 1224 1292 1368 1938 2584 2907 3876 5387 5814 7752 10774 11628 16161 21548 23256 32322 43096 48483 64644 91579 96966 102353 129288 183158 193932 204706 274737 307059 366316 387864 409412 549474 614118 732632 818824 824211 921177 1098948 1228236 1648422 1740001 1842354 2197896 2456472 3296844 3480002 3684708 5220003 6593688 6960004 7369416 10440006 13920008 15660009 20880012 31320018 41760024 62640036 125280072