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1072104049 = 13722392
BaseRepresentation
bin111111111001110…
…000001001110001
32202201100112021101
4333321300021301
54143424312144
6254214524401
735365506532
oct7771601161
92681315241
101072104049
115001a1705
1225b066701
131411645c3
14a255a689
15641c56d4
hex3fe70271

1072104049 has 9 divisors (see below), whose sum is σ = 1084524427. Its totient is φ = 1059825424.

The previous prime is 1072104041. The next prime is 1072104071. The reversal of 1072104049 is 9404012701.

The square root of 1072104049 is 32743.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 629759025 + 442345024 = 25095^2 + 21032^2 .

It is not a de Polignac number, because 1072104049 - 23 = 1072104041 is a prime.

It is a super-2 number, since 2×10721040492 = 2298814183764388802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072104041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4485672 + ... + 4485910.

Almost surely, 21072104049 is an apocalyptic number.

1072104049 is the 32743-rd square number.

1072104049 is the 16372-nd centered octagonal number.

It is an amenable number.

1072104049 is a deficient number, since it is larger than the sum of its proper divisors (12420378).

1072104049 is an frugal number, since it uses more digits than its factorization.

1072104049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The cubic root of 1072104049 is about 1023.4791004168.

The spelling of 1072104049 in words is "one billion, seventy-two million, one hundred four thousand, forty-nine".

Divisors: 1 137 239 18769 32743 57121 4485791 7825577 1072104049