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20032010320 = 2457151236897
BaseRepresentation
bin10010101010000000…
…000011100001010000
31220201001202120011011
4102222000003201100
5312011143312240
613111431300304
71306261164310
oct225200034120
956631676134
1020032010320
11854a602933
123a7081a694
131b7320495a
14d80659440
157c39906ea
hex4aa003850

20032010320 has 80 divisors (see below), whose sum is σ = 53580642048. Its totient is φ = 6822604800.

The previous prime is 20032010281. The next prime is 20032010321. The reversal of 20032010320 is 2301023002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 20032010320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032010321) 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, 33889 + ... + 203008.

Almost surely, 220032010320 is an apocalyptic number.

20032010320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032010320 is an abundant number, since it is smaller than the sum of its proper divisors (33548631728).

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

20032010320 is a wasteful number, since it uses less digits than its factorization.

20032010320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237068 (or 237062 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20032010320 its reverse (2301023002), we get a palindrome (22333033322).

The spelling of 20032010320 in words is "twenty billion, thirty-two million, ten thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 151 280 302 560 604 755 1057 1208 1510 2114 2416 3020 4228 5285 6040 8456 10570 12080 16912 21140 42280 84560 236897 473794 947588 1184485 1658279 1895176 2368970 3316558 3790352 4737940 6633116 8291395 9475880 13266232 16582790 18951760 26532464 33165580 35771447 66331160 71542894 132662320 143085788 178857235 250400129 286171576 357714470 500800258 572343152 715428940 1001600516 1252000645 1430857880 2003201032 2504001290 2861715760 4006402064 5008002580 10016005160 20032010320