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40220101332 = 22321854160257
BaseRepresentation
bin100101011101010011…
…100000101011010100
310211211000012211202200
4211131103200223110
51124332321220312
630251000204500
72622456135435
oct453523405324
9124730184680
1040220101332
111606a220474
127965769730
133a3c857138
141d3790348c
1510a5eb20dc
hex95d4e0ad4

40220101332 has 36 divisors (see below), whose sum is σ = 101674649076. Its totient is φ = 13405754880.

The previous prime is 40220101307. The next prime is 40220101343. The reversal of 40220101332 is 23310102204.

It can be written as a sum of positive squares in 2 ways, for example, as 25955143236 + 14264958096 = 161106^2 + 119436^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 637348 + ... + 697604.

Almost surely, 240220101332 is an apocalyptic number.

It is an amenable number.

40220101332 is an abundant number, since it is smaller than the sum of its proper divisors (61454547744).

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

40220101332 is a wasteful number, since it uses less digits than its factorization.

40220101332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78808 (or 78803 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 40220101332 its reverse (23310102204), we get a palindrome (63530203536).

The spelling of 40220101332 in words is "forty billion, two hundred twenty million, one hundred one thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 18541 37082 55623 60257 74164 111246 120514 166869 180771 222492 241028 333738 361542 542313 667476 723084 1084626 2169252 1117225037 2234450074 3351675111 4468900148 6703350222 10055025333 13406700444 20110050666 40220101332