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76500072 = 23331122927
BaseRepresentation
bin1001000111101…
…00110001101000
312022221121101000
410203310301220
5124041000242
611331355000
71616145165
oct443646150
9168847330
1076500072
113a200700
1221752a60
1312b0631c
14a23506c
156ab1a4c
hex48f4c68

76500072 has 96 divisors (see below), whose sum is σ = 233654400. Its totient is φ = 23173920.

The previous prime is 76500059. The next prime is 76500079. The reversal of 76500072 is 27000567.

76500072 is a `hidden beast` number, since 7 + 650 + 0 + 0 + 7 + 2 = 666.

It is a super-2 number, since 2×765000722 = 11704522032010368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (76500079) 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, 24673 + ... + 27599.

It is an arithmetic number, because the mean of its divisors is an integer number (2433900).

Almost surely, 276500072 is an apocalyptic number.

76500072 is a gapful number since it is divisible by the number (72) 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 76500072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116827200).

76500072 is an abundant number, since it is smaller than the sum of its proper divisors (157154328).

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

76500072 is a wasteful number, since it uses less digits than its factorization.

76500072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964 (or 2943 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 76500072 is about 8746.4319582330. The cubic root of 76500072 is about 424.5093706181.

The spelling of 76500072 in words is "seventy-six million, five hundred thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 44 54 66 72 88 99 108 121 132 198 216 242 264 297 363 396 484 594 726 792 968 1089 1188 1452 2178 2376 2904 2927 3267 4356 5854 6534 8712 8781 11708 13068 17562 23416 26136 26343 32197 35124 52686 64394 70248 79029 96591 105372 128788 158058 193182 210744 257576 289773 316116 354167 386364 579546 632232 708334 772728 869319 1062501 1159092 1416668 1738638 2125002 2318184 2833336 3187503 3477276 4250004 6375006 6954552 8500008 9562509 12750012 19125018 25500024 38250036 76500072