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47480472 = 23331337457
BaseRepresentation
bin1011010100011…
…1111010011000
310022100020222000
42311013322120
544123333342
64413401000
71114402014
oct265077230
9108306860
1047480472
112488a866
1213a99160
139ab5670
14643d544
15427d44c
hex2d47e98

47480472 has 128 divisors (see below), whose sum is σ = 146193600. Its totient is φ = 14183424.

The previous prime is 47480467. The next prime is 47480567. The reversal of 47480472 is 27408474.

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 31 ways as a sum of consecutive naturals, for example, 103668 + ... + 104124.

Almost surely, 247480472 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 47480472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73096800).

47480472 is an abundant number, since it is smaller than the sum of its proper divisors (98713128).

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

47480472 is a wasteful number, since it uses less digits than its factorization.

47480472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 47480472 is about 6890.6075203860. The cubic root of 47480472 is about 362.1081857697.

The spelling of 47480472 in words is "forty-seven million, four hundred eighty thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 27 36 37 39 52 54 72 74 78 104 108 111 117 148 156 216 222 234 296 312 333 351 444 457 468 481 666 702 888 914 936 962 999 1332 1371 1404 1443 1828 1924 1998 2664 2742 2808 2886 3656 3848 3996 4113 4329 5484 5772 5941 7992 8226 8658 10968 11544 11882 12339 12987 16452 16909 17316 17823 23764 24678 25974 32904 33818 34632 35646 47528 49356 50727 51948 53469 67636 71292 98712 101454 103896 106938 135272 142584 152181 160407 202908 213876 219817 304362 320814 405816 427752 439634 456543 608724 641628 659451 879268 913086 1217448 1283256 1318902 1758536 1826172 1978353 2637804 3652344 3956706 5275608 5935059 7913412 11870118 15826824 23740236 47480472