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47201011020 = 223251715425167
BaseRepresentation
bin101011111101011001…
…100100010101001100
311111211112000210120100
4223331121210111030
51233131424323040
633403413251100
73260453655012
oct537531442514
9144745023510
1047201011020
1119021816219
129193633a90
1345b2c07a27
1423daad08b2
151363ca9b30
hexafd66454c

47201011020 has 72 divisors (see below), whose sum is σ = 151598551104. Its totient is φ = 11846527488.

The previous prime is 47201011019. The next prime is 47201011051. The reversal of 47201011020 is 2011010274.

It is a super-2 number, since 2×472010110202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 47201010984 and 47201011002.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7709524 + ... + 7715643.

It is an arithmetic number, because the mean of its divisors is an integer number (2105535432).

Almost surely, 247201011020 is an apocalyptic number.

It is an amenable number.

47201011020 is an abundant number, since it is smaller than the sum of its proper divisors (104397540084).

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

47201011020 is a wasteful number, since it uses less digits than its factorization.

47201011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15425199 (or 15425194 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

Adding to 47201011020 its reverse (2011010274), we get a palindrome (49212021294).

The spelling of 47201011020 in words is "forty-seven billion, two hundred one million, eleven thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 17 18 20 30 34 36 45 51 60 68 85 90 102 153 170 180 204 255 306 340 510 612 765 1020 1530 3060 15425167 30850334 46275501 61700668 77125835 92551002 138826503 154251670 185102004 231377505 262227839 277653006 308503340 462755010 524455678 555306012 694132515 786683517 925510020 1048911356 1311139195 1388265030 1573367034 2360050551 2622278390 2776530060 3146734068 3933417585 4720101102 5244556780 7866835170 9440202204 11800252755 15733670340 23600505510 47201011020