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53880513 = 323780877
BaseRepresentation
bin1100110110001…
…0011011000001
310202101102011120
43031202123001
5102243134023
65202502453
71222656021
oct315423301
9122342146
1053880513
1128461255
1216064a29
13b21677b
147227a81
154ae48e3
hex33626c1

53880513 has 8 divisors (see below), whose sum is σ = 74964288. Its totient is φ = 34358544.

The previous prime is 53880509. The next prime is 53880539. The reversal of 53880513 is 31508835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53880513 - 22 = 53880509 is a prime.

It is a super-2 number, since 2×538805132 = 5806219362286338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53880503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390370 + ... + 390507.

It is an arithmetic number, because the mean of its divisors is an integer number (9370536).

Almost surely, 253880513 is an apocalyptic number.

It is an amenable number.

53880513 is a deficient number, since it is larger than the sum of its proper divisors (21083775).

53880513 is a wasteful number, since it uses less digits than its factorization.

53880513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780903.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 53880513 is about 7340.3346653950. The cubic root of 53880513 is about 377.6973235598.

The spelling of 53880513 in words is "fifty-three million, eight hundred eighty thousand, five hundred thirteen".

Divisors: 1 3 23 69 780877 2342631 17960171 53880513