Search a number
-
+
20110013480 = 2352179923063
BaseRepresentation
bin10010101110101001…
…100111010000101000
31220220111112112101002
4102232221213100220
5312141130412410
613123255214132
71311226202624
oct225651472050
956814475332
1020110013480
11858a63a857
123a92977348
131b8641617b
14d8ab62184
157ca74c7a5
hex4aea67428

20110013480 has 32 divisors (see below), whose sum is σ = 45251568000. Its totient is φ = 8043287616.

The previous prime is 20110013479. The next prime is 20110013527. The reversal of 20110013480 is 8431001102.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 860429 + ... + 883491.

It is an arithmetic number, because the mean of its divisors is an integer number (1414111500).

Almost surely, 220110013480 is an apocalyptic number.

20110013480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110013480 is an abundant number, since it is smaller than the sum of its proper divisors (25141554520).

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

20110013480 is a wasteful number, since it uses less digits than its factorization.

20110013480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44873 (or 44869 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20110013480 its reverse (8431001102), we get a palindrome (28541014582).

The spelling of 20110013480 in words is "twenty billion, one hundred ten million, thirteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 21799 23063 43598 46126 87196 92252 108995 115315 174392 184504 217990 230630 435980 461260 871960 922520 502750337 1005500674 2011001348 2513751685 4022002696 5027503370 10055006740 20110013480