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83629428 = 22321133029
BaseRepresentation
bin1001111110000…
…01010101110100
312211100211000020
410333001111310
5132402120203
612144245140
72033560401
oct477012564
9184324006
1083629428
1143230033
12240107b0
131443138c
14b16d2a8
15751e153
hex4fc1574

83629428 has 24 divisors (see below), whose sum is σ = 196066080. Its totient is φ = 27743520.

The previous prime is 83629397. The next prime is 83629439. The reversal of 83629428 is 82492638.

It is a self number, because there is not a number n which added to its sum of digits gives 83629428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13983 + ... + 19046.

It is an arithmetic number, because the mean of its divisors is an integer number (8169420).

Almost surely, 283629428 is an apocalyptic number.

It is an amenable number.

83629428 is an abundant number, since it is smaller than the sum of its proper divisors (112436652).

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

83629428 is a wasteful number, since it uses less digits than its factorization.

83629428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33247 (or 33245 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 83629428 is about 9144.9126841102. The cubic root of 83629428 is about 437.3069458990.

The spelling of 83629428 in words is "eighty-three million, six hundred twenty-nine thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 211 422 633 844 1266 2532 33029 66058 99087 132116 198174 396348 6969119 13938238 20907357 27876476 41814714 83629428