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20480403548 = 22112971226063
BaseRepresentation
bin10011000100101110…
…100010100001011100
31221212022111022000202
4103010232202201130
5313420440403143
613224130043032
71323344362223
oct230456424134
957768438022
1020480403548
11875a721350
123b76a19478
131c1508b1a7
14dc4019cba
157ed012ab8
hex4c4ba285c

20480403548 has 48 divisors (see below), whose sum is σ = 41017052160. Its totient is φ = 8861630400.

The previous prime is 20480403547. The next prime is 20480403551. The reversal of 20480403548 is 84530408402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20480403547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22436 + ... + 203627.

It is an arithmetic number, because the mean of its divisors is an integer number (854521920).

Almost surely, 220480403548 is an apocalyptic number.

It is an amenable number.

20480403548 is an abundant number, since it is smaller than the sum of its proper divisors (20536648612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20480403548 is a wasteful number, since it uses less digits than its factorization.

20480403548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226178 (or 226176 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 38.

The spelling of 20480403548 in words is "twenty billion, four hundred eighty million, four hundred three thousand, five hundred forty-eight".

Divisors: 1 2 4 11 22 29 44 58 71 116 142 284 319 638 781 1276 1562 2059 3124 4118 8236 22649 45298 90596 226063 452126 904252 2486693 4973386 6555827 9946772 13111654 16050473 26223308 32100946 64201892 72114097 144228194 176555203 288456388 353110406 465463717 706220812 930927434 1861854868 5120100887 10240201774 20480403548