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30514229437 = 203931496309
BaseRepresentation
bin11100011010110010…
…100011000010111101
32220202120220110112211
4130122302203002331
5444443120320222
622003521500421
72130112446016
oct343262430275
986676813484
1030514229437
1111a3953a23a
125ab71a1711
132b53a8cb83
14169686600d
15bd8d53277
hex71aca30bd

30514229437 has 4 divisors (see below), whose sum is σ = 30515746140. Its totient is φ = 30512712736.

The previous prime is 30514229429. The next prime is 30514229453. The reversal of 30514229437 is 73492241503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25493231556 + 5020997881 = 159666^2 + 70859^2 .

It is a cyclic number.

It is not a de Polignac number, because 30514229437 - 23 = 30514229429 is a prime.

It is a super-2 number, since 2×305142294372 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30514229437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30514223437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727762 + ... + 768547.

It is an arithmetic number, because the mean of its divisors is an integer number (7628936535).

Almost surely, 230514229437 is an apocalyptic number.

It is an amenable number.

30514229437 is a deficient number, since it is larger than the sum of its proper divisors (1516703).

30514229437 is a wasteful number, since it uses less digits than its factorization.

30514229437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516702.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 30514229437 in words is "thirty billion, five hundred fourteen million, two hundred twenty-nine thousand, four hundred thirty-seven".

Divisors: 1 20393 1496309 30514229437