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20948365151 = 729103193917
BaseRepresentation
bin10011100000100111…
…101010111101011111
32000001221001012122222
4103200213222331133
5320400240141101
613342404055555
71341056110610
oct234047527537
960057035588
1020948365151
11897a89587a
1240876945bb
131c8b00654c
14102a231c07
1582914d01b
hex4e09eaf5f

20948365151 has 8 divisors (see below), whose sum is σ = 24766540320. Its totient is φ = 17336577888.

The previous prime is 20948365129. The next prime is 20948365153. The reversal of 20948365151 is 15156384902.

It is a happy number.

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

It is not a de Polignac number, because 20948365151 - 222 = 20944170847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20948365153) 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, 51596756 + ... + 51597161.

It is an arithmetic number, because the mean of its divisors is an integer number (3095817540).

Almost surely, 220948365151 is an apocalyptic number.

20948365151 is a deficient number, since it is larger than the sum of its proper divisors (3818175169).

20948365151 is a wasteful number, since it uses less digits than its factorization.

20948365151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103193953.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 20948365151 in words is "twenty billion, nine hundred forty-eight million, three hundred sixty-five thousand, one hundred fifty-one".

Divisors: 1 7 29 203 103193917 722357419 2992623593 20948365151