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42501952580 = 2252125097629
BaseRepresentation
bin100111100101010100…
…000101010001000100
311001201000220220012212
4213211110011101010
51144020444440310
631305232202552
73033144431123
oct474524052104
9131630826185
1042501952580
111703027604a
1282a1999458
134014516689
1420b29a9aba
15118b49b205
hex9e5505444

42501952580 has 12 divisors (see below), whose sum is σ = 89254100460. Its totient is φ = 17000781024.

The previous prime is 42501952573. The next prime is 42501952583. The reversal of 42501952580 is 8525910524.

It can be written as a sum of positive squares in 2 ways, for example, as 10812256324 + 31689696256 = 103982^2 + 178016^2 .

It is a super-2 number, since 2×425019525802 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42501952583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062548795 + ... + 1062548834.

It is an arithmetic number, because the mean of its divisors is an integer number (7437841705).

Almost surely, 242501952580 is an apocalyptic number.

It is an amenable number.

42501952580 is an abundant number, since it is smaller than the sum of its proper divisors (46752147880).

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

42501952580 is a wasteful number, since it uses less digits than its factorization.

42501952580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125097638 (or 2125097636 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 42501952580 in words is "forty-two billion, five hundred one million, nine hundred fifty-two thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 2125097629 4250195258 8500390516 10625488145 21250976290 42501952580