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34905940 = 2251745297
BaseRepresentation
bin1000010100100…
…1111101010100
32102200101221121
42011021331110
532413442230
63244053324
7602460406
oct205117524
972611847
1034905940
1118781393
12b834244
137302004
1448c8b76
1530e777a
hex2149f54

34905940 has 12 divisors (see below), whose sum is σ = 73302516. Its totient is φ = 13962368.

The previous prime is 34905919. The next prime is 34905971. The reversal of 34905940 is 4950943.

It can be written as a sum of positive squares in 2 ways, for example, as 27583504 + 7322436 = 5252^2 + 2706^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34905896 and 34905905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872629 + ... + 872668.

It is an arithmetic number, because the mean of its divisors is an integer number (6108543).

Almost surely, 234905940 is an apocalyptic number.

It is an amenable number.

34905940 is an abundant number, since it is smaller than the sum of its proper divisors (38396576).

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

34905940 is a wasteful number, since it uses less digits than its factorization.

34905940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745306 (or 1745304 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 34905940 is about 5908.1249140484. The cubic root of 34905940 is about 326.8133428961.

The spelling of 34905940 in words is "thirty-four million, nine hundred five thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1745297 3490594 6981188 8726485 17452970 34905940