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30178025472 = 213372329263
BaseRepresentation
bin11100000110110000…
…000010000000000000
32212220011021112102010
4130012300002000000
5443301033303342
621510311452520
72115560661360
oct340660020000
985804245363
1030178025472
1111886788221
125a22687140
132acc22730a
141663d4a9a0
15bb959229c
hex706c02000

30178025472 has 448 divisors, whose sum is σ = 99650580480. Its totient is φ = 7932739584.

The previous prime is 30178025453. The next prime is 30178025491. The reversal of 30178025472 is 27452087103.

It is an interprime number because it is at equal distance from previous prime (30178025453) and next prime (30178025491).

It is a tau number, because it is divible by the number of its divisors (448).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 30178025472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114745213 + ... + 114745475.

Almost surely, 230178025472 is an apocalyptic number.

30178025472 is a gapful number since it is divisible by the number (32) 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 30178025472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49825290240).

30178025472 is an abundant number, since it is smaller than the sum of its proper divisors (69472555008).

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

30178025472 is a wasteful number, since it uses less digits than its factorization.

30178025472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 30178025472 in words is "thirty billion, one hundred seventy-eight million, twenty-five thousand, four hundred seventy-two".