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124552540201 = 127980728663
BaseRepresentation
bin111001111111111101…
…0001111000000101001
3102220111021120121121111
41303333322033000221
54020040422241301
6133115121110321
711666346060235
oct1637772170051
9386437517544
10124552540201
1148905730a41
12201804883a1
13b98c42853b
146057c0b5c5
15338e9c1551
hex1cffe8f029

124552540201 has 4 divisors (see below), whose sum is σ = 125533268992. Its totient is φ = 123571811412.

The previous prime is 124552540199. The next prime is 124552540219. The reversal of 124552540201 is 102045255421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102045255421 = 971105092951.

It is a cyclic number.

It is not a de Polignac number, because 124552540201 - 21 = 124552540199 is a prime.

It is a super-2 number, since 2×1245525402012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124552540271) 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, 490364205 + ... + 490364458.

It is an arithmetic number, because the mean of its divisors is an integer number (31383317248).

Almost surely, 2124552540201 is an apocalyptic number.

It is an amenable number.

124552540201 is a deficient number, since it is larger than the sum of its proper divisors (980728791).

124552540201 is an equidigital number, since it uses as much as digits as its factorization.

124552540201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980728790.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 124552540201 its reverse (102045255421), we get a palindrome (226597795622).

The spelling of 124552540201 in words is "one hundred twenty-four billion, five hundred fifty-two million, five hundred forty thousand, two hundred one".

Divisors: 1 127 980728663 124552540201