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53002142802 = 2357172313747
BaseRepresentation
bin110001010111001011…
…001000010001010010
312001210210212211100000
4301113023020101102
51332022022032202
640203203510430
73554304531450
oct612713102122
9161723784300
1053002142802
1120529367404
12a332388416
134cc8a2469b
1427cb3339d0
1515a320d91c
hexc572c8452

53002142802 has 576 divisors, whose sum is σ = 156540174336. Its totient is φ = 13134597120.

The previous prime is 53002142801. The next prime is 53002142861. The reversal of 53002142802 is 20824120035.

It is a super-2 number, since 2×530021428022 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53002142801) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1127705143 + ... + 1127705189.

It is an arithmetic number, because the mean of its divisors is an integer number (271771136).

Almost surely, 253002142802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53002142802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78270087168).

53002142802 is an abundant number, since it is smaller than the sum of its proper divisors (103538031534).

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

53002142802 is a wasteful number, since it uses less digits than its factorization.

53002142802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 53002142802 its reverse (20824120035), we get a palindrome (73826262837).

The spelling of 53002142802 in words is "fifty-three billion, two million, one hundred forty-two thousand, eight hundred two".