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52453290 = 2356128663
BaseRepresentation
bin1100100000010…
…1111110101010
310122200220101110
43020011332222
5101412001130
65112131150
71204563021
oct310057652
9118626343
1052453290
1127676a2a
1215696ab6
13ab36c66
146d758b8
154911ab0
hex3205faa

52453290 has 32 divisors (see below), whose sum is σ = 127956096. Its totient is φ = 13757760.

The previous prime is 52453273. The next prime is 52453337. The reversal of 52453290 is 9235425.

52453290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 12502 + ... + 16161.

It is an arithmetic number, because the mean of its divisors is an integer number (3998628).

Almost surely, 252453290 is an apocalyptic number.

52453290 is an abundant number, since it is smaller than the sum of its proper divisors (75502806).

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

52453290 is a wasteful number, since it uses less digits than its factorization.

52453290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28734.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 52453290 is about 7242.4643595947. The cubic root of 52453290 is about 374.3325371315.

The spelling of 52453290 in words is "fifty-two million, four hundred fifty-three thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 61 122 183 305 366 610 915 1830 28663 57326 85989 143315 171978 286630 429945 859890 1748443 3496886 5245329 8742215 10490658 17484430 26226645 52453290