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51513088 = 281121663
BaseRepresentation
bin1100010010000…
…0011100000000
310120221010200011
43010200130000
5101141404323
65040034304
71163565634
oct304403400
9116833604
1051513088
1127094600
1215302994
13a898023
146bacdc4
1547c820d
hex3120700

51513088 has 54 divisors (see below), whose sum is σ = 113090432. Its totient is φ = 23400960.

The previous prime is 51513083. The next prime is 51513089. The reversal of 51513088 is 88031515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51513083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30145 + ... + 31807.

Almost surely, 251513088 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 51513088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56545216).

51513088 is an abundant number, since it is smaller than the sum of its proper divisors (61577344).

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

51513088 is a wasteful number, since it uses less digits than its factorization.

51513088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 51513088 is about 7177.2618734445. The cubic root of 51513088 is about 372.0824575372.

The spelling of 51513088 in words is "fifty-one million, five hundred thirteen thousand, eighty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 128 176 242 256 352 484 704 968 1408 1663 1936 2816 3326 3872 6652 7744 13304 15488 18293 26608 30976 36586 53216 73172 106432 146344 201223 212864 292688 402446 425728 585376 804892 1170752 1609784 2341504 3219568 4683008 6439136 12878272 25756544 51513088