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126893954653 = 627120235043
BaseRepresentation
bin111011000101101111…
…0000001011001011101
3110010112110100210102021
41312023132001121131
54034334323022103
6134143321500141
712111356550364
oct1661336013135
9403473323367
10126893954653
11498a7369304
1220714641651
13bc73540c8b
1461dab7a7db
15347a323bbd
hex1d8b78165d

126893954653 has 4 divisors (see below), whose sum is σ = 126914195968. Its totient is φ = 126873713340.

The previous prime is 126893954633. The next prime is 126893954657. The reversal of 126893954653 is 356459398621.

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.

It is a cyclic number.

It is not a de Polignac number, because 126893954653 - 29 = 126893954141 is a prime.

It is a super-2 number, since 2×1268939546532 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126893954591 and 126893954600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126893954657) 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, 10111251 + ... + 10123792.

It is an arithmetic number, because the mean of its divisors is an integer number (31728548992).

Almost surely, 2126893954653 is an apocalyptic number.

It is an amenable number.

126893954653 is a deficient number, since it is larger than the sum of its proper divisors (20241315).

126893954653 is an equidigital number, since it uses as much as digits as its factorization.

126893954653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20241314.

The product of its digits is 41990400, while the sum is 61.

The spelling of 126893954653 in words is "one hundred twenty-six billion, eight hundred ninety-three million, nine hundred fifty-four thousand, six hundred fifty-three".

Divisors: 1 6271 20235043 126893954653