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13952888146 = 2192931408433
BaseRepresentation
bin11001111111010100…
…00010110101010010
31100000101211011021001
430333222002311102
5212033414410041
610224310452214
71002523410121
oct147752026522
940011734231
1013952888146
115a1005041a
12285496406a
131414925242
14965131ab8
15569e29131
hex33fa82d52

13952888146 has 32 divisors (see below), whose sum is σ = 23525798400. Its totient is φ = 6175491840.

The previous prime is 13952888141. The next prime is 13952888149. The reversal of 13952888146 is 64188825931.

It is a happy number.

It is a super-2 number, since 2×139528881462 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13952888141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170055 + ... + 238378.

It is an arithmetic number, because the mean of its divisors is an integer number (735181200).

Almost surely, 213952888146 is an apocalyptic number.

13952888146 is a deficient number, since it is larger than the sum of its proper divisors (9572910254).

13952888146 is a wasteful number, since it uses less digits than its factorization.

13952888146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408514.

The product of its digits is 3317760, while the sum is 55.

The spelling of 13952888146 in words is "thirteen billion, nine hundred fifty-two million, eight hundred eighty-eight thousand, one hundred forty-six".

Divisors: 1 2 19 29 31 38 58 62 551 589 899 1102 1178 1798 17081 34162 408433 816866 7760227 11844557 12661423 15520454 23689114 25322846 225046583 240567037 367181267 450093166 481134074 734362534 6976444073 13952888146