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32103212020 = 22511145923691
BaseRepresentation
bin11101111001100000…
…000010001111110100
310001212022212010212121
4131321200002033310
51011221410241040
622425323125324
72214355541215
oct357140021764
9101768763777
1032103212020
1112684476390
12627b373844
133048038c59
1417a78cd40c
15c7d5c7c4a
hex7798023f4

32103212020 has 24 divisors (see below), whose sum is σ = 73545540768. Its totient is φ = 11673895200.

The previous prime is 32103212017. The next prime is 32103212059. The reversal of 32103212020 is 2021230123.

It is a junction number, because it is equal to n+sod(n) for n = 32103211985 and 32103212003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72961626 + ... + 72962065.

It is an arithmetic number, because the mean of its divisors is an integer number (3064397532).

Almost surely, 232103212020 is an apocalyptic number.

It is an amenable number.

32103212020 is an abundant number, since it is smaller than the sum of its proper divisors (41442328748).

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

32103212020 is a wasteful number, since it uses less digits than its factorization.

32103212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145923711 (or 145923709 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 32103212020 its reverse (2021230123), we get a palindrome (34124442143).

The spelling of 32103212020 in words is "thirty-two billion, one hundred three million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 145923691 291847382 583694764 729618455 1459236910 1605160601 2918473820 3210321202 6420642404 8025803005 16051606010 32103212020