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30472168542 = 235078694757
BaseRepresentation
bin11100011000010010…
…000110010001011110
32220122122202112211220
4130120102012101132
5444401333343132
621555420154210
72126062105344
oct343022062136
986578675756
1030472168542
1111a17821272
125aa5098966
132b4815427a
141691037994
15bd52e5a2c
hex71848645e

30472168542 has 8 divisors (see below), whose sum is σ = 60944337096. Its totient is φ = 10157389512.

The previous prime is 30472168541. The next prime is 30472168579. The reversal of 30472168542 is 24586127403.

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

30472168542 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 30472168494 and 30472168503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472168541) 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, 2539347373 + ... + 2539347384.

It is an arithmetic number, because the mean of its divisors is an integer number (7618042137).

Almost surely, 230472168542 is an apocalyptic number.

30472168542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30472168542 is a wasteful number, since it uses less digits than its factorization.

30472168542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078694762.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 30472168542 in words is "thirty billion, four hundred seventy-two million, one hundred sixty-eight thousand, five hundred forty-two".

Divisors: 1 2 3 6 5078694757 10157389514 15236084271 30472168542