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32212012 = 22721491103
BaseRepresentation
bin111101011100…
…0010000101100
32020121112120111
41322320100230
531221241022
63110225404
7540540400
oct172702054
966545514
1032212012
11172013a8
12a955264
13689aa81
1443c7100
152c64477
hex1eb842c

32212012 has 36 divisors (see below), whose sum is σ = 66074400. Its totient is φ = 13700064.

The previous prime is 32212009. The next prime is 32212043. The reversal of 32212012 is 21021223.

It is a super-2 number, since 2×322120122 = 2075227434176288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32211983 and 32212001.

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, 28653 + ... + 29755.

It is an arithmetic number, because the mean of its divisors is an integer number (1835400).

Almost surely, 232212012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32212012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33037200).

32212012 is an abundant number, since it is smaller than the sum of its proper divisors (33862388).

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

32212012 is a wasteful number, since it uses less digits than its factorization.

32212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1261 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 32212012 is about 5675.5627033802. The cubic root of 32212012 is about 318.1798094419.

Adding to 32212012 its reverse (21021223), we get a palindrome (53233235).

The spelling of 32212012 in words is "thirty-two million, two hundred twelve thousand, twelve".

Divisors: 1 2 4 7 14 28 49 98 149 196 298 596 1043 1103 2086 2206 4172 4412 7301 7721 14602 15442 29204 30884 54047 108094 164347 216188 328694 657388 1150429 2300858 4601716 8053003 16106006 32212012