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3191451029 = 13419761729
BaseRepresentation
bin1011111000111001…
…1010110110010101
322020102021111202222
42332032122312111
523014002413104
61244403512125
7142041612644
oct27616326625
98212244688
103191451029
111398544438
12750988645
133bb267580
14223c0135b
1513a2b01be
hexbe39ad95

3191451029 has 16 divisors (see below), whose sum is σ = 3557129520. Its totient is φ = 2844426240.

The previous prime is 3191451017. The next prime is 3191451041. The reversal of 3191451029 is 9201541913.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3191451017) and next prime (3191451041).

It can be written as a sum of positive squares in 8 ways, for example, as 91968100 + 3099482929 = 9590^2 + 55673^2 .

It is a cyclic number.

It is not a de Polignac number, because 3191451029 - 212 = 3191446933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3191451029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3191451059) 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 15 ways as a sum of consecutive naturals, for example, 20837 + ... + 82565.

It is an arithmetic number, because the mean of its divisors is an integer number (222320595).

Almost surely, 23191451029 is an apocalyptic number.

It is an amenable number.

3191451029 is a deficient number, since it is larger than the sum of its proper divisors (365678491).

3191451029 is a wasteful number, since it uses less digits than its factorization.

3191451029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61880.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 3191451029 is about 56492.9290177098. The cubic root of 3191451029 is about 1472.2991508429.

The spelling of 3191451029 in words is "three billion, one hundred ninety-one million, four hundred fifty-one thousand, twenty-nine".

Divisors: 1 13 41 97 533 1261 3977 51701 61729 802477 2530889 5987713 32901557 77840269 245496233 3191451029