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61419740 = 22512724181
BaseRepresentation
bin1110101001001…
…1000011011100
311021120110001012
43222103003130
5111210412430
610032234352
71344026204
oct352230334
9137513035
1061419740
1131740618
121869b9b8
13c956255
14822b404
1555d3695
hex3a930dc

61419740 has 24 divisors (see below), whose sum is σ = 130002432. Its totient is φ = 24373440.

The previous prime is 61419731. The next prime is 61419749. The reversal of 61419740 is 4791416.

61419740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61419731) and next prime (61419749).

It is a junction number, because it is equal to n+sod(n) for n = 61419697 and 61419706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61419749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9551 + ... + 14630.

It is an arithmetic number, because the mean of its divisors is an integer number (5416768).

Almost surely, 261419740 is an apocalyptic number.

It is an amenable number.

61419740 is an abundant number, since it is smaller than the sum of its proper divisors (68582692).

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

61419740 is a wasteful number, since it uses less digits than its factorization.

61419740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24317 (or 24315 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 61419740 is about 7837.0747093542. The cubic root of 61419740 is about 394.5505543324.

The spelling of 61419740 in words is "sixty-one million, four hundred nineteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 24181 48362 96724 120905 241810 483620 3070987 6141974 12283948 15354935 30709870 61419740