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34640450 = 25213137389
BaseRepresentation
bin1000010000100…
…1001001000010
32102011220202122
42010021021002
532331443300
63234244242
7600303365
oct204111102
972156678
1034640450
111860a979
12b726682
13723b210
14485a0dc
153093c85
hex2109242

34640450 has 48 divisors (see below), whose sum is σ = 70073640. Its totient is φ = 12664320.

The previous prime is 34640447. The next prime is 34640467. The reversal of 34640450 is 5404643.

It can be written as a sum of positive squares in 12 ways, for example, as 54289 + 34586161 = 233^2 + 5881^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88856 + ... + 89244.

Almost surely, 234640450 is an apocalyptic number.

34640450 is an abundant number, since it is smaller than the sum of its proper divisors (35433190).

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

34640450 is a wasteful number, since it uses less digits than its factorization.

34640450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 34640450 is about 5885.6138167569. The cubic root of 34640450 is about 325.9826668491.

The spelling of 34640450 in words is "thirty-four million, six hundred forty thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 137 274 325 389 650 685 778 1370 1781 1945 3425 3562 3890 5057 6850 8905 9725 10114 17810 19450 25285 44525 50570 53293 89050 106586 126425 252850 266465 532930 692809 1332325 1385618 2664650 3464045 6928090 17320225 34640450