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82074951 = 357261113
BaseRepresentation
bin1001110010001…
…01110101000111
312201102211200000
410321011311013
5132002344301
612051052343
72014424400
oct471056507
9181384600
1082074951
1142369142
12235a10b3
131400897a
14ac869a7
157313786
hex4e45d47

82074951 has 72 divisors (see below), whose sum is σ = 146646864. Its totient is φ = 45722880.

The previous prime is 82074931. The next prime is 82074973. The reversal of 82074951 is 15947028.

It is not a de Polignac number, because 82074951 - 214 = 82058567 is a prime.

It is a super-3 number, since 3×820749513 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82074911) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 726271 + ... + 726383.

It is an arithmetic number, because the mean of its divisors is an integer number (2036762).

Almost surely, 282074951 is an apocalyptic number.

82074951 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

82074951 is a deficient number, since it is larger than the sum of its proper divisors (64571913).

82074951 is a wasteful number, since it uses less digits than its factorization.

82074951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 184 counting only the distinct ones).

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

The square root of 82074951 is about 9059.5226695450. The cubic root of 82074951 is about 434.5804754353.

The spelling of 82074951 in words is "eighty-two million, seventy-four thousand, nine hundred fifty-one".

Divisors: 1 3 7 9 21 27 49 61 63 81 113 147 183 189 243 339 427 441 549 567 791 1017 1281 1323 1647 1701 2373 2989 3051 3843 3969 4941 5537 6893 7119 8967 9153 11529 11907 14823 16611 20679 21357 26901 27459 34587 48251 49833 62037 64071 80703 103761 144753 149499 186111 192213 242109 337757 434259 448497 558333 726327 1013271 1302777 1345491 1674999 3039813 3908331 9119439 11724993 27358317 82074951