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53369140 = 22511367661
BaseRepresentation
bin1100101110010…
…1100100110100
310201102102200211
43023211210310
5102130303030
65143515204
71215426106
oct313454464
9121372624
1053369140
1128142030
1215a58b04
13b097a96
147133576
154a4312a
hex32e5934

53369140 has 48 divisors (see below), whose sum is σ = 122782464. Its totient is φ = 19324800.

The previous prime is 53369093. The next prime is 53369179. The reversal of 53369140 is 4196335.

53369140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80410 + ... + 81070.

It is an arithmetic number, because the mean of its divisors is an integer number (2557968).

Almost surely, 253369140 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 53369140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61391232).

53369140 is an abundant number, since it is smaller than the sum of its proper divisors (69413324).

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

53369140 is a wasteful number, since it uses less digits than its factorization.

53369140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 53369140 is about 7305.4185369491. The cubic root of 53369140 is about 376.4986311161.

The spelling of 53369140 in words is "fifty-three million, three hundred sixty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 367 661 734 1322 1468 1835 2644 3305 3670 4037 6610 7271 7340 8074 13220 14542 16148 20185 29084 36355 40370 72710 80740 145420 242587 485174 970348 1212935 2425870 2668457 4851740 5336914 10673828 13342285 26684570 53369140