Search a number
-
+
14985155838 = 232719215963
BaseRepresentation
bin11011111010010111…
…10101010011111110
31102200100012210022210
431331023311103332
5221142144441323
610514543521250
71040226502662
oct157513652376
942610183283
1014985155838
11639a803414
122aa25b9226
13154a74c623
14a2227c8a2
155ca881293
hex37d2f54fe

14985155838 has 16 divisors (see below), whose sum is σ = 30080906496. Its totient is φ = 4976619480.

The previous prime is 14985155827. The next prime is 14985155839. The reversal of 14985155838 is 83855158941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14985155839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4606356 + ... + 4609607.

It is an arithmetic number, because the mean of its divisors is an integer number (1880056656).

Almost surely, 214985155838 is an apocalyptic number.

14985155838 is an abundant number, since it is smaller than the sum of its proper divisors (15095750658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14985155838 is a wasteful number, since it uses less digits than its factorization.

14985155838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9216239.

The product of its digits is 6912000, while the sum is 57.

The spelling of 14985155838 in words is "fourteen billion, nine hundred eighty-five million, one hundred fifty-five thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 271 542 813 1626 9215963 18431926 27647889 55295778 2497525973 4995051946 7492577919 14985155838