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53502001 = 731373661
BaseRepresentation
bin1100110000011…
…0000000110001
310201200011221121
43030012000301
5102144031001
65150422241
71216521340
oct314060061
9121604847
1053502001
1128222933
1215b01981
13b1133b7
147169b57
154a6c6a1
hex3306031

53502001 has 16 divisors (see below), whose sum is σ = 63382528. Its totient is φ = 44193600.

The previous prime is 53501993. The next prime is 53502041. The reversal of 53502001 is 10020535.

It is not a de Polignac number, because 53502001 - 23 = 53501993 is a prime.

It is a super-2 number, since 2×535020012 = 5724928222008002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53502041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80611 + ... + 81271.

It is an arithmetic number, because the mean of its divisors is an integer number (3961408).

Almost surely, 253502001 is an apocalyptic number.

It is an amenable number.

53502001 is a deficient number, since it is larger than the sum of its proper divisors (9880527).

53502001 is a wasteful number, since it uses less digits than its factorization.

53502001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 53502001 is about 7314.5062034289. The cubic root of 53502001 is about 376.8107998619.

Adding to 53502001 its reverse (10020535), we get a palindrome (63522536).

The spelling of 53502001 in words is "fifty-three million, five hundred two thousand, one".

Divisors: 1 7 31 217 373 661 2611 4627 11563 20491 80941 143437 246553 1725871 7643143 53502001