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61954396 = 2272212657
BaseRepresentation
bin1110110001010…
…1100101011100
311022120121110021
43230111211130
5111330020041
610051521524
71351414030
oct354254534
9138517407
1061954396
1131a76289
12188b92a4
13cab270a
14832a1c0
15568bcd1
hex3b1595c

61954396 has 12 divisors (see below), whose sum is σ = 123908848. Its totient is φ = 26551872.

The previous prime is 61954393. The next prime is 61954441. The reversal of 61954396 is 69345916.

61954396 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61954393) 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, 1106301 + ... + 1106356.

Almost surely, 261954396 is an apocalyptic number.

It is an amenable number.

61954396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61954396 is a wasteful number, since it uses less digits than its factorization.

61954396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212668 (or 2212666 counting only the distinct ones).

The product of its digits is 174960, while the sum is 43.

The square root of 61954396 is about 7871.1114844093. Note that the first 3 decimals coincide. The cubic root of 61954396 is about 395.6920964726.

The spelling of 61954396 in words is "sixty-one million, nine hundred fifty-four thousand, three hundred ninety-six".

Divisors: 1 2 4 7 14 28 2212657 4425314 8850628 15488599 30977198 61954396