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1081980670 = 25108198067
BaseRepresentation
bin100000001111101…
…1011011011111110
32210101221022110011
41000133123123332
54203441340140
6255210333434
735545453411
oct10037333376
92711838404
101081980670
11505828101
1226242a27a
13143211c64
14a39abb78
1564ec6cea
hex407db6fe

1081980670 has 8 divisors (see below), whose sum is σ = 1947565224. Its totient is φ = 432792264.

The previous prime is 1081980661. The next prime is 1081980671. The reversal of 1081980670 is 760891801.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081980671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54099024 + ... + 54099043.

It is an arithmetic number, because the mean of its divisors is an integer number (243445653).

Almost surely, 21081980670 is an apocalyptic number.

1081980670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081980670 is a deficient number, since it is larger than the sum of its proper divisors (865584554).

1081980670 is a wasteful number, since it uses less digits than its factorization.

1081980670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108198074.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 1081980670 is about 32893.4745808344. The cubic root of 1081980670 is about 1026.6123883197.

The spelling of 1081980670 in words is "one billion, eighty-one million, nine hundred eighty thousand, six hundred seventy".

Divisors: 1 2 5 10 108198067 216396134 540990335 1081980670