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51472608 = 2531179617
BaseRepresentation
bin1100010001011…
…0100011100000
310120212002010220
43010112203200
5101134110413
65035123040
71163336625
oct304264340
9116762126
1051472608
1127067150
12152a3480
13a882785
146b9c34c
1547bb223
hex31168e0

51472608 has 96 divisors (see below), whose sum is σ = 149506560. Its totient is φ = 15375360.

The previous prime is 51472601. The next prime is 51472627. The reversal of 51472608 is 80627415.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51472601) 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, 83116 + ... + 83732.

It is an arithmetic number, because the mean of its divisors is an integer number (1557360).

Almost surely, 251472608 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 51472608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74753280).

51472608 is an abundant number, since it is smaller than the sum of its proper divisors (98033952).

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

51472608 is a wasteful number, since it uses less digits than its factorization.

51472608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 51472608 is about 7174.4413022897. The cubic root of 51472608 is about 371.9849687533.

The spelling of 51472608 in words is "fifty-one million, four hundred seventy-two thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 79 88 96 132 158 176 237 264 316 352 474 528 617 632 869 948 1056 1234 1264 1738 1851 1896 2468 2528 2607 3476 3702 3792 4936 5214 6787 6952 7404 7584 9872 10428 13574 13904 14808 19744 20361 20856 27148 27808 29616 40722 41712 48743 54296 59232 81444 83424 97486 108592 146229 162888 194972 217184 292458 325776 389944 536173 584916 651552 779888 1072346 1169832 1559776 1608519 2144692 2339664 3217038 4289384 4679328 6434076 8578768 12868152 17157536 25736304 51472608