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3215427030 = 23551323221
BaseRepresentation
bin1011111110100111…
…1000010111010110
322022002101121200000
42333221320113112
523041122131110
61251021432130
7142452451554
oct27751702726
98262347600
103215427030
11140002aa12
12758a0b646
133c321065a
14227082bd4
1513c4491c0
hexbfa785d6

3215427030 has 48 divisors (see below), whose sum is σ = 8669750544. Its totient is φ = 857446560.

The previous prime is 3215427023. The next prime is 3215427031. The reversal of 3215427030 is 307245123.

3215427030 is a `hidden beast` number, since 3 + 21 + 542 + 70 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3215426985 and 3215427003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215427031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 659181 + ... + 664040.

It is an arithmetic number, because the mean of its divisors is an integer number (180619803).

Almost surely, 23215427030 is an apocalyptic number.

3215427030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3215427030 is an abundant number, since it is smaller than the sum of its proper divisors (5454323514).

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

3215427030 is a wasteful number, since it uses less digits than its factorization.

3215427030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323243 (or 1323231 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 3215427030 is about 56704.7355165334. The cubic root of 3215427030 is about 1475.9768735222.

The spelling of 3215427030 in words is "three billion, two hundred fifteen million, four hundred twenty-seven thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 810 1215 2430 1323221 2646442 3969663 6616105 7939326 11908989 13232210 19848315 23817978 35726967 39696630 59544945 71453934 107180901 119089890 178634835 214361802 321542703 357269670 535904505 643085406 1071809010 1607713515 3215427030