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101969045 = 526377543
BaseRepresentation
bin1100001001111…
…10110010010101
321002212120020022
412010332302111
5202101002140
614041314525
72345502563
oct604766225
9232776208
10101969045
1152616942
122a195a45
1318182b19
14d784a33
158e430b5
hex613ec95

101969045 has 8 divisors (see below), whose sum is σ = 122829696. Its totient is φ = 81264016.

The previous prime is 101969033. The next prime is 101969059. The reversal of 101969045 is 540969101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101969045 is a prime.

It is a super-2 number, since 2×1019690452 = 20795372276424050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101968996 and 101969014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37457 + ... + 40086.

It is an arithmetic number, because the mean of its divisors is an integer number (15353712).

Almost surely, 2101969045 is an apocalyptic number.

It is an amenable number.

101969045 is a deficient number, since it is larger than the sum of its proper divisors (20860651).

101969045 is an equidigital number, since it uses as much as digits as its factorization.

101969045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77811.

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

The square root of 101969045 is about 10097.9723212138. The cubic root of 101969045 is about 467.1856027149.

The spelling of 101969045 in words is "one hundred one million, nine hundred sixty-nine thousand, forty-five".

Divisors: 1 5 263 1315 77543 387715 20393809 101969045