Search a number
-
+
20210012132 = 228956769697
BaseRepresentation
bin10010110100100111…
…000100111111100100
31221011110200222201212
4102310213010333210
5312342230342012
613141230410552
71313552161112
oct226447047744
957143628655
1020210012132
118631030272
123b00360a58
131ba105917b
14d9a152ab2
157d4401b22
hex4b49c4fe4

20210012132 has 12 divisors (see below), whose sum is σ = 35764909740. Its totient is φ = 9991466496.

The previous prime is 20210012129. The next prime is 20210012143. The reversal of 20210012132 is 23121001202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9257133796 + 10952878336 = 96214^2 + 104656^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28384493 + ... + 28385204.

It is an arithmetic number, because the mean of its divisors is an integer number (2980409145).

Almost surely, 220210012132 is an apocalyptic number.

It is an amenable number.

20210012132 is a deficient number, since it is larger than the sum of its proper divisors (15554897608).

20210012132 is a wasteful number, since it uses less digits than its factorization.

20210012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56769790 (or 56769788 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20210012132 its reverse (23121001202), we get a palindrome (43331013334).

The spelling of 20210012132 in words is "twenty billion, two hundred ten million, twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 89 178 356 56769697 113539394 227078788 5052503033 10105006066 20210012132