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53318070 = 232513199229
BaseRepresentation
bin1100101101100…
…1000110110110
310201022211122100
43023121012312
5102122134240
65142442530
71215124161
oct313310666
9121284570
1053318070
1128107723
1215a33446
13b07a770
14711cad8
154a32e30
hex32d91b6

53318070 has 96 divisors (see below), whose sum is σ = 150696000. Its totient is φ = 13001472.

The previous prime is 53318063. The next prime is 53318077. The reversal of 53318070 is 7081335.

It is an interprime number because it is at equal distance from previous prime (53318063) and next prime (53318077).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53318077) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 232716 + ... + 232944.

It is an arithmetic number, because the mean of its divisors is an integer number (1569750).

Almost surely, 253318070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53318070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75348000).

53318070 is an abundant number, since it is smaller than the sum of its proper divisors (97377930).

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

53318070 is a wasteful number, since it uses less digits than its factorization.

53318070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 53318070 is about 7301.9223496282. The cubic root of 53318070 is about 376.3784997599.

The spelling of 53318070 in words is "fifty-three million, three hundred eighteen thousand, seventy".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 199 229 234 390 398 458 585 597 687 995 1145 1170 1194 1374 1791 1990 2061 2290 2587 2977 2985 3435 3582 4122 5174 5954 5970 6870 7761 8931 8955 10305 12935 14885 15522 17862 17910 20610 23283 25870 26793 29770 38805 44655 45571 46566 53586 77610 89310 91142 116415 133965 136713 227855 232830 267930 273426 410139 455710 592423 683565 820278 1184846 1367130 1777269 2050695 2962115 3554538 4101390 5331807 5924230 8886345 10663614 17772690 26659035 53318070