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34187428 = 2211776987
BaseRepresentation
bin1000001001101…
…0100010100100
32101022220100001
42002122202210
532222444203
63220431044
7563405542
oct202324244
971286301
1034187428
1118330580
12b548484
13710cc62
14477cd92
15300491d
hex209a8a4

34187428 has 12 divisors (see below), whose sum is σ = 65266992. Its totient is φ = 15539720.

The previous prime is 34187411. The next prime is 34187429. The reversal of 34187428 is 82478143.

It is not an unprimeable number, because it can be changed into a prime (34187429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388450 + ... + 388537.

It is an arithmetic number, because the mean of its divisors is an integer number (5438916).

Almost surely, 234187428 is an apocalyptic number.

It is an amenable number.

34187428 is a deficient number, since it is larger than the sum of its proper divisors (31079564).

34187428 is a wasteful number, since it uses less digits than its factorization.

34187428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777002 (or 777000 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 34187428 is about 5847.0016247646. The cubic root of 34187428 is about 324.5553778027. Note that the first 3 decimals are identical.

The spelling of 34187428 in words is "thirty-four million, one hundred eighty-seven thousand, four hundred twenty-eight".

Divisors: 1 2 4 11 22 44 776987 1553974 3107948 8546857 17093714 34187428