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20213200032 = 253232398023
BaseRepresentation
bin10010110100110011…
…001111010010100000
31221011200200221201020
4102310303033102200
5312344034400112
613141423005440
71313621236224
oct226463172240
957150627636
1020213200032
1186329083a3
123b01439880
131ba19041bc
14d9a742784
157d483148c
hex4b4ccf4a0

20213200032 has 72 divisors (see below), whose sum is σ = 55467032544. Its totient is φ = 6444772224.

The previous prime is 20213200019. The next prime is 20213200057. The reversal of 20213200032 is 23000231202.

It is a junction number, because it is equal to n+sod(n) for n = 20213199984 and 20213200020.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148228 + ... + 249795.

It is an arithmetic number, because the mean of its divisors is an integer number (770375452).

Almost surely, 220213200032 is an apocalyptic number.

It is an amenable number.

20213200032 is an abundant number, since it is smaller than the sum of its proper divisors (35253832512).

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

20213200032 is a wasteful number, since it uses less digits than its factorization.

20213200032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398082 (or 398051 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20213200032 its reverse (23000231202), we get a palindrome (43213431234).

The spelling of 20213200032 in words is "twenty billion, two hundred thirteen million, two hundred thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 69 92 96 138 184 276 368 529 552 736 1058 1104 1587 2116 2208 3174 4232 6348 8464 12696 16928 25392 50784 398023 796046 1194069 1592092 2388138 3184184 4776276 6368368 9154529 9552552 12736736 18309058 19105104 27463587 36618116 38210208 54927174 73236232 109854348 146472464 210554167 219708696 292944928 421108334 439417392 631662501 842216668 878834784 1263325002 1684433336 2526650004 3368866672 5053300008 6737733344 10106600016 20213200032