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2057172770 = 25223922499
BaseRepresentation
bin111101010011101…
…1111011100100010
312022100221012112002
41322213133130202
513203114012040
6540044204002
7101656452152
oct17247373442
95270835462
102057172770
11966247394
12494b39602
1326a2744c3
141572dc762
15c0907a15
hex7a9df722

2057172770 has 16 divisors (see below), whose sum is σ = 3719520000. Its totient is φ = 819178224.

The previous prime is 2057172763. The next prime is 2057172773. The reversal of 2057172770 is 772717502.

It is a happy number.

It is a super-3 number, since 3×20571727703 (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2057172773) 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 7 ways as a sum of consecutive naturals, for example, 459020 + ... + 463479.

It is an arithmetic number, because the mean of its divisors is an integer number (232470000).

Almost surely, 22057172770 is an apocalyptic number.

2057172770 is a deficient number, since it is larger than the sum of its proper divisors (1662347230).

2057172770 is a wasteful number, since it uses less digits than its factorization.

2057172770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922729.

The product of its (nonzero) digits is 48020, while the sum is 38.

The square root of 2057172770 is about 45356.0665181627. The cubic root of 2057172770 is about 1271.8139639487.

The spelling of 2057172770 in words is "two billion, fifty-seven million, one hundred seventy-two thousand, seven hundred seventy".

Divisors: 1 2 5 10 223 446 1115 2230 922499 1844998 4612495 9224990 205717277 411434554 1028586385 2057172770