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61340321212125 = 3531150314220133
BaseRepresentation
bin11011111001001111010000…
…00011100110011011011101
322001012002002110012202220020
431330213220003212123131
531014444434212242000
6334243204325342353
715630456225315324
oct1574475003463335
9261162073182806
1061340321212125
11185aa3142047aa
126a681b95679b9
13282c4a1442017
141120c5cdc50bb
157159087adba0
hex37c9e80e66dd

61340321212125 has 32 divisors (see below), whose sum is σ = 102079175038464. Its totient is φ = 32711991652800.

The previous prime is 61340321212123. The next prime is 61340321212147. The reversal of 61340321212125 is 52121212304316.

It is not a de Polignac number, because 61340321212125 - 21 = 61340321212123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61340321212123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2796442 + ... + 11423691.

It is an arithmetic number, because the mean of its divisors is an integer number (3189974219952).

Almost surely, 261340321212125 is an apocalyptic number.

It is an amenable number.

61340321212125 is a deficient number, since it is larger than the sum of its proper divisors (40738853826339).

61340321212125 is a wasteful number, since it uses less digits than its factorization.

61340321212125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14231654 (or 14231644 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 61340321212125 in words is "sixty-one trillion, three hundred forty billion, three hundred twenty-one million, two hundred twelve thousand, one hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 11503 34509 57515 172545 287575 862725 1437875 4313625 14220133 42660399 71100665 213301995 355503325 1066509975 1777516625 5332549875 163574189899 490722569697 817870949495 2453612848485 4089354747475 12268064242425 20446773737375 61340321212125