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52457048 = 23742731
BaseRepresentation
bin1100100000011…
…0111001011000
310122201002112122
43020012321120
5101412111143
65112200412
71204610000
oct310067130
9118632478
1052457048
1127679836
1215699108
13ab38897
146d77000
154912c68
hex3206e58

52457048 has 40 divisors (see below), whose sum is σ = 114784980. Its totient is φ = 22473360.

The previous prime is 52457017. The next prime is 52457051. The reversal of 52457048 is 84075425.

It is a junction number, because it is equal to n+sod(n) for n = 52456999 and 52457017.

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 9 ways as a sum of consecutive naturals, for example, 17843 + ... + 20573.

Almost surely, 252457048 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 52457048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57392490).

52457048 is an abundant number, since it is smaller than the sum of its proper divisors (62327932).

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

52457048 is an equidigital number, since it uses as much as digits as its factorization.

52457048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 52457048 is about 7242.7237970255. The cubic root of 52457048 is about 374.3414765649.

The spelling of 52457048 in words is "fifty-two million, four hundred fifty-seven thousand, forty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 343 392 686 1372 2401 2731 2744 4802 5462 9604 10924 19117 19208 21848 38234 76468 133819 152936 267638 535276 936733 1070552 1873466 3746932 6557131 7493864 13114262 26228524 52457048