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63972468 = 223271931431
BaseRepresentation
bin1111010000001…
…0010001110100
311110101010201200
43310002101310
5112334104333
610203052500
71404520440
oct364022164
9143333650
1063972468
113312450a
1219511130
131033b141
1486d3820
155939c13
hex3d02474

63972468 has 144 divisors (see below), whose sum is σ = 201277440. Its totient is φ = 16718400.

The previous prime is 63972443. The next prime is 63972481. The reversal of 63972468 is 86427936.

63972468 is a `hidden beast` number, since 639 + 7 + 2 + 4 + 6 + 8 = 666.

It is a super-2 number, since 2×639724682 = 8184953324022048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148213 + ... + 148643.

It is an arithmetic number, because the mean of its divisors is an integer number (1397760).

Almost surely, 263972468 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 63972468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100638720).

63972468 is an abundant number, since it is smaller than the sum of its proper divisors (137304972).

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

63972468 is a wasteful number, since it uses less digits than its factorization.

63972468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 493 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 63972468 is about 7998.2790648989. The cubic root of 63972468 is about 399.9426334398.

The spelling of 63972468 in words is "sixty-three million, nine hundred seventy-two thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 19 21 28 31 36 38 42 57 62 63 76 84 93 114 124 126 133 171 186 217 228 252 266 279 342 372 399 431 434 532 558 589 651 684 798 862 868 1116 1178 1197 1293 1302 1596 1724 1767 1953 2356 2394 2586 2604 3017 3534 3879 3906 4123 4788 5172 5301 6034 7068 7758 7812 8189 8246 9051 10602 12068 12369 13361 15516 16378 16492 18102 21204 24567 24738 26722 27153 32756 36204 37107 40083 49134 49476 53444 54306 57323 73701 74214 80166 93527 98268 108612 114646 120249 147402 148428 160332 171969 187054 229292 240498 253859 280581 294804 343938 374108 480996 507718 515907 561162 687876 761577 841743 1015436 1031814 1122324 1523154 1683486 1777013 2063628 2284731 3046308 3366972 3554026 4569462 5331039 7108052 9138924 10662078 15993117 21324156 31986234 63972468