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83408172 = 223151191241
BaseRepresentation
bin1001111100010…
…11010100101100
312210221120111120
410332023110230
5132323030142
612135420540
72031646341
oct476132454
9183846446
1083408172
1143099881
1223b24750
1314384763
14b1127c8
1574c87ec
hex4f8b52c

83408172 has 48 divisors (see below), whose sum is σ = 197750784. Its totient is φ = 27360000.

The previous prime is 83408161. The next prime is 83408179. The reversal of 83408172 is 27180438.

It is not an unprimeable number, because it can be changed into a prime (83408179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345972 + ... + 346212.

It is an arithmetic number, because the mean of its divisors is an integer number (4119808).

Almost surely, 283408172 is an apocalyptic number.

It is an amenable number.

83408172 is an abundant number, since it is smaller than the sum of its proper divisors (114342612).

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

83408172 is a wasteful number, since it uses less digits than its factorization.

83408172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 83408172 is about 9132.8074544469. The cubic root of 83408172 is about 436.9209484399.

The spelling of 83408172 in words is "eighty-three million, four hundred eight thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 151 191 241 302 382 453 482 573 604 723 764 906 964 1146 1446 1812 2292 2892 28841 36391 46031 57682 72782 86523 92062 109173 115364 138093 145564 173046 184124 218346 276186 346092 436692 552372 6950681 13901362 20852043 27802724 41704086 83408172