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53058915 = 3357213617
BaseRepresentation
bin1100101001100…
…1110101100011
310200211200011000
43022121311203
5102040341130
65133123043
71212664500
oct312316543
9120750130
1053058915
1127a4aa48
1215929483
13acb9810
1470924a7
1549d1260
hex3299d63

53058915 has 96 divisors (see below), whose sum is σ = 118359360. Its totient is φ = 22353408.

The previous prime is 53058913. The next prime is 53058919. The reversal of 53058915 is 51985035.

It is a happy number.

It is not a de Polignac number, because 53058915 - 21 = 53058913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53058915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53058913) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 85687 + ... + 86303.

It is an arithmetic number, because the mean of its divisors is an integer number (1232910).

Almost surely, 253058915 is an apocalyptic number.

53058915 is an abundant number, since it is smaller than the sum of its proper divisors (65300445).

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

53058915 is a wasteful number, since it uses less digits than its factorization.

53058915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 53058915 is about 7284.1550642473. The cubic root of 53058915 is about 375.7677072623.

The spelling of 53058915 in words is "fifty-three million, fifty-eight thousand, nine hundred fifteen".

Divisors: 1 3 5 7 9 13 15 21 27 35 39 45 49 63 65 91 105 117 135 147 189 195 245 273 315 351 441 455 585 617 637 735 819 945 1323 1365 1755 1851 1911 2205 2457 3085 3185 4095 4319 5553 5733 6615 8021 9255 9555 12285 12957 16659 17199 21595 24063 27765 28665 30233 38871 40105 56147 64785 72189 83295 85995 90699 116613 120315 151165 168441 194355 216567 272097 280735 360945 393029 453495 505323 583065 816291 842205 1082835 1179087 1360485 1515969 1965145 2526615 3537261 4081455 5895435 7579845 10611783 17686305 53058915