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52155070 = 2511474137
BaseRepresentation
bin1100011011110…
…1001010111110
310122010202022021
43012331022332
5101322430240
65101510354
71202211412
oct306751276
9118122267
1052155070
1127492970
12155723ba
13aa612b6
146cd8d42
1548a354a
hex31bd2be

52155070 has 16 divisors (see below), whose sum is σ = 102413808. Its totient is φ = 18965440.

The previous prime is 52155049. The next prime is 52155071. The reversal of 52155070 is 7055125.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52155071) 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, 236959 + ... + 237178.

It is an arithmetic number, because the mean of its divisors is an integer number (6400863).

Almost surely, 252155070 is an apocalyptic number.

52155070 is a deficient number, since it is larger than the sum of its proper divisors (50258738).

52155070 is a wasteful number, since it uses less digits than its factorization.

52155070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474155.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 52155070 is about 7221.8467167339. The cubic root of 52155070 is about 373.6217734423.

The spelling of 52155070 in words is "fifty-two million, one hundred fifty-five thousand, seventy".

Divisors: 1 2 5 10 11 22 55 110 474137 948274 2370685 4741370 5215507 10431014 26077535 52155070