Search a number
-
+
13950858240 = 21032511171619
BaseRepresentation
bin11001111111000100…
…10011010000000000
31100000021000000202100
430333202103100000
5212032404430430
610224155150400
71002500224044
oct147742232000
940007000670
1013950858240
115a09994310
122854145400
131414394307
14964b64024
15569b77960
hex33f893400

13950858240 has 528 divisors, whose sum is σ = 55870326720. Its totient is φ = 3181117440.

The previous prime is 13950858239. The next prime is 13950858247. The reversal of 13950858240 is 4285805931.

13950858240 is a `hidden beast` number, since 13 + 9 + 50 + 8 + 582 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (528).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13950858247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8616151 + ... + 8617769.

Almost surely, 213950858240 is an apocalyptic number.

13950858240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13950858240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27935163360).

13950858240 is an abundant number, since it is smaller than the sum of its proper divisors (41919468480).

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

13950858240 is a wasteful number, since it uses less digits than its factorization.

13950858240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 13950858240 in words is "thirteen billion, nine hundred fifty million, eight hundred fifty-eight thousand, two hundred forty".