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32130023212 = 22761155312113
BaseRepresentation
bin11101111011000110…
…010011111100101100
310001221012022021220201
4131323012103330230
51011300241220322
622432121523244
72215132456030
oct357306237454
9101835267821
1032130023212
1112698618aa1
126288343524
133050765671
1417ab2ac1c0
15c80b21d27
hex77b193f2c

32130023212 has 48 divisors (see below), whose sum is σ = 65360941632. Its totient is φ = 13534433280.

The previous prime is 32130023203. The next prime is 32130023221. The reversal of 32130023212 is 21232003123.

It is an interprime number because it is at equal distance from previous prime (32130023203) and next prime (32130023221).

It is a self number, because there is not a number n which added to its sum of digits gives 32130023212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2646468 + ... + 2658580.

It is an arithmetic number, because the mean of its divisors is an integer number (1361686284).

Almost surely, 232130023212 is an apocalyptic number.

It is an amenable number.

32130023212 is an abundant number, since it is smaller than the sum of its proper divisors (33230918420).

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

32130023212 is a wasteful number, since it uses less digits than its factorization.

32130023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13738 (or 13736 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 32130023212 its reverse (21232003123), we get a palindrome (53362026335).

The spelling of 32130023212 in words is "thirty-two billion, one hundred thirty million, twenty-three thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 61 122 244 427 854 1553 1708 3106 6212 10871 12113 21742 24226 43484 48452 84791 94733 169582 189466 339164 378932 663131 738893 1326262 1477786 2652524 2955572 5172251 10344502 18811489 20689004 37622978 75245956 131680423 263360846 526721692 1147500829 2295001658 4590003316 8032505803 16065011606 32130023212