Search a number
-
+
139133864430 = 234511191077681
BaseRepresentation
bin1000000110010100000…
…1100100100111101110
3111022010110220122010000
42001211001210213232
54234421232130210
6143530041325130
713023603222501
oct2014501444756
9438113818100
10139133864430
1154008491720
1222b6b7967a6
13101742c4542
146a3c5a9138
153944b83ac0
hex20650649ee

139133864430 has 320 divisors, whose sum is σ = 433677784320. Its totient is φ = 31651430400.

The previous prime is 139133864413. The next prime is 139133864431. The reversal of 139133864430 is 34468331931.

139133864430 is a `hidden beast` number, since 1 + 3 + 9 + 133 + 86 + 4 + 430 = 666.

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 (139133864431) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 18110190 + ... + 18117870.

It is an arithmetic number, because the mean of its divisors is an integer number (1355243076).

Almost surely, 2139133864430 is an apocalyptic number.

139133864430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139133864430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216838892160).

139133864430 is an abundant number, since it is smaller than the sum of its proper divisors (294543919890).

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

139133864430 is a wasteful number, since it uses less digits than its factorization.

139133864430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837 (or 7828 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 139133864430 in words is "one hundred thirty-nine billion, one hundred thirty-three million, eight hundred sixty-four thousand, four hundred thirty".