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1080172930 = 25108017293
BaseRepresentation
bin100000001100010…
…0010000110000010
32210021112110200211
41000120202012002
54203011013210
6255103504334
735524214134
oct10030420602
92707473624
101080172930
11504802a01
122618b80aa
13142a2b1a5
14a365b054
1564c6b38a
hex40622182

1080172930 has 8 divisors (see below), whose sum is σ = 1944311292. Its totient is φ = 432069168.

The previous prime is 1080172903. The next prime is 1080172937. The reversal of 1080172930 is 392710801.

It can be written as a sum of positive squares in 2 ways, for example, as 1056055009 + 24117921 = 32497^2 + 4911^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1080172892 and 1080172901.

It is not an unprimeable number, because it can be changed into a prime (1080172937) 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, 54008637 + ... + 54008656.

Almost surely, 21080172930 is an apocalyptic number.

1080172930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1080172930 is a deficient number, since it is larger than the sum of its proper divisors (864138362).

1080172930 is a wasteful number, since it uses less digits than its factorization.

1080172930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108017300.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1080172930 is about 32865.9843911604. The cubic root of 1080172930 is about 1026.0403254799.

The spelling of 1080172930 in words is "one billion, eighty million, one hundred seventy-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 108017293 216034586 540086465 1080172930