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47192472 = 23325383149
BaseRepresentation
bin1011010000000…
…1100110011000
310021210121220100
42310001212120
544040124342
64403255400
71112062245
oct264014630
9107717810
1047192472
1124703448
121397a560
139a14552
1463a65cc
154222e4c
hex2d01998

47192472 has 96 divisors (see below), whose sum is σ = 132678000. Its totient is φ = 15145728.

The previous prime is 47192449. The next prime is 47192491. The reversal of 47192472 is 27429174.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316654 + ... + 316802.

Almost surely, 247192472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47192472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66339000).

47192472 is an abundant number, since it is smaller than the sum of its proper divisors (85485528).

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

47192472 is a wasteful number, since it uses less digits than its factorization.

47192472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 290 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 47192472 is about 6869.6777216984. The cubic root of 47192472 is about 361.3745597613.

The spelling of 47192472 in words is "forty-seven million, one hundred ninety-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 53 72 83 106 149 159 166 212 249 298 318 332 424 447 477 498 596 636 664 747 894 954 996 1192 1272 1341 1494 1788 1908 1992 2682 2988 3576 3816 4399 5364 5976 7897 8798 10728 12367 13197 15794 17596 23691 24734 26394 31588 35192 37101 39591 47382 49468 52788 63176 71073 74202 79182 94764 98936 105576 111303 142146 148404 158364 189528 222606 284292 296808 316728 445212 568584 655451 890424 1310902 1966353 2621804 3932706 5243608 5899059 7865412 11798118 15730824 23596236 47192472