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61348404 = 22313479821
BaseRepresentation
bin1110101000000…
…1101000110100
311021102211012010
43222001220310
5111201122104
610030524220
71343311215
oct352015064
9137384163
1061348404
11316a1a67
1218666670
13c92c940
14820d40c
1555bc489
hex3a81a34

61348404 has 48 divisors (see below), whose sum is σ = 154667520. Its totient is φ = 18814080.

The previous prime is 61348403. The next prime is 61348451. The reversal of 61348404 is 40484316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61348403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74314 + ... + 75134.

It is an arithmetic number, because the mean of its divisors is an integer number (3222240).

Almost surely, 261348404 is an apocalyptic number.

It is an amenable number.

61348404 is an abundant number, since it is smaller than the sum of its proper divisors (93319116).

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

61348404 is a wasteful number, since it uses less digits than its factorization.

61348404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 61348404 is about 7832.5221991387. The cubic root of 61348404 is about 394.3977448177.

The spelling of 61348404 in words is "sixty-one million, three hundred forty-eight thousand, four hundred four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 479 821 958 1437 1642 1916 2463 2874 3284 4926 5748 6227 9852 10673 12454 18681 21346 24908 32019 37362 42692 64038 74724 128076 393259 786518 1179777 1573036 2359554 4719108 5112367 10224734 15337101 20449468 30674202 61348404