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3420145236 = 22319113132749
BaseRepresentation
bin1100101111011011…
…0100011001010100
322211100121101020210
43023312310121110
524001024121421
61323213325420
7150516516624
oct31366643124
98740541223
103420145236
1114a5645812
127b5496870
1342675a3a1
14246332884
151503d6576
hexcbdb4654

3420145236 has 48 divisors (see below), whose sum is σ = 8474760000. Its totient is φ = 1070479872.

The previous prime is 3420145219. The next prime is 3420145237. The reversal of 3420145236 is 6325410243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420145237) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40611 + ... + 92138.

It is an arithmetic number, because the mean of its divisors is an integer number (176557500).

Almost surely, 23420145236 is an apocalyptic number.

It is an amenable number.

3420145236 is an abundant number, since it is smaller than the sum of its proper divisors (5054614764).

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

3420145236 is a wasteful number, since it uses less digits than its factorization.

3420145236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132888 (or 132886 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 3420145236 is about 58482.0077972704. The cubic root of 3420145236 is about 1506.6585815692.

Adding to 3420145236 its reverse (6325410243), we get a palindrome (9745555479).

The spelling of 3420145236 in words is "three billion, four hundred twenty million, one hundred forty-five thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 12 19 38 57 76 113 114 226 228 339 452 678 1356 2147 4294 6441 8588 12882 25764 132749 265498 398247 530996 796494 1592988 2522231 5044462 7566693 10088924 15000637 15133386 30001274 30266772 45001911 60002548 90003822 180007644 285012103 570024206 855036309 1140048412 1710072618 3420145236