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1055907019 = 19123923131
BaseRepresentation
bin111110111011111…
…101110011001011
32201120212122010101
4332323331303023
54130303011034
6252435430231
735111030056
oct7673756313
92646778111
101055907019
114a2039632
12255755377
1313a9b316b
14a0341a9d
1562a76514
hex3eefdccb

1055907019 has 8 divisors (see below), whose sum is σ = 1065922560. Its totient is φ = 1045938600.

The previous prime is 1055906987. The next prime is 1055907059. The reversal of 1055907019 is 9107095501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1055907019 - 25 = 1055906987 is a prime.

It is a super-2 number, since 2×10559070192 = 2229879265546932722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055907059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34084 + ... + 57214.

It is an arithmetic number, because the mean of its divisors is an integer number (133240320).

Almost surely, 21055907019 is an apocalyptic number.

1055907019 is a deficient number, since it is larger than the sum of its proper divisors (10015541).

1055907019 is a wasteful number, since it uses less digits than its factorization.

1055907019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23561.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 1055907019 is about 32494.7229408099. The cubic root of 1055907019 is about 1018.2987850438.

The spelling of 1055907019 in words is "one billion, fifty-five million, nine hundred seven thousand, nineteen".

Divisors: 1 191 239 23131 45649 4418021 5528309 1055907019