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11712435841 = 312511505261
BaseRepresentation
bin10101110100001110…
…11001011010000001
31010020021000101111001
422322013121122001
5142441340421331
65214114052001
7563150030161
oct127207313201
933207011431
1011712435841
114a70401447
12232a57a001
1311486cc212
147d17645a1
154883bb561
hex2ba1d9681

11712435841 has 8 divisors (see below), whose sum is σ = 12138432768. Its totient is φ = 11289450000.

The previous prime is 11712435827. The next prime is 11712435857. The reversal of 11712435841 is 14853421711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11712435841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11712435841.

It is not an unprimeable number, because it can be changed into a prime (11712435881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744850 + ... + 760411.

It is an arithmetic number, because the mean of its divisors is an integer number (1517304096).

Almost surely, 211712435841 is an apocalyptic number.

It is an amenable number.

11712435841 is a deficient number, since it is larger than the sum of its proper divisors (425996927).

11712435841 is a wasteful number, since it uses less digits than its factorization.

11712435841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505543.

The product of its digits is 26880, while the sum is 37.

The spelling of 11712435841 in words is "eleven billion, seven hundred twelve million, four hundred thirty-five thousand, eight hundred forty-one".

Divisors: 1 31 251 7781 1505261 46663091 377820511 11712435841