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30149154381 = 319528932533
BaseRepresentation
bin11100000101000001…
…111001011001001101
32212211010221201201110
4130011001321121031
5443221140420011
621503401002233
72115060404163
oct340501713115
985733851643
1030149154381
1111871458a15
125a14a83379
132ac6259128
141660193233
15bb6c8cba6
hex70507964d

30149154381 has 8 divisors (see below), whose sum is σ = 42314602720. Its totient is φ = 19041571152.

The previous prime is 30149154341. The next prime is 30149154383. The reversal of 30149154381 is 18345194103.

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

It is not a de Polignac number, because 30149154381 - 210 = 30149153357 is a prime.

It is a super-2 number, since 2×301491543812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30149154383) 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, 264466210 + ... + 264466323.

It is an arithmetic number, because the mean of its divisors is an integer number (5289325340).

Almost surely, 230149154381 is an apocalyptic number.

It is an amenable number.

30149154381 is a deficient number, since it is larger than the sum of its proper divisors (12165448339).

30149154381 is a wasteful number, since it uses less digits than its factorization.

30149154381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528932555.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 30149154381 in words is "thirty billion, one hundred forty-nine million, one hundred fifty-four thousand, three hundred eighty-one".

Divisors: 1 3 19 57 528932533 1586797599 10049718127 30149154381