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61948460 = 2257442489
BaseRepresentation
bin1110110001010…
…0001000101100
311022120022022102
43230110020230
5111324322320
610051434232
71351360520
oct354241054
9138508272
1061948460
1131a71882
12188b5978
13caacac2
148327d80
15568a175
hex3b1422c

61948460 has 24 divisors (see below), whose sum is σ = 148676640. Its totient is φ = 21239424.

The previous prime is 61948433. The next prime is 61948477. The reversal of 61948460 is 6484916.

It is a super-2 number, since 2×619484602 = 7675223392743200, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 221105 + ... + 221384.

It is an arithmetic number, because the mean of its divisors is an integer number (6194860).

Almost surely, 261948460 is an apocalyptic number.

It is an amenable number.

61948460 is an abundant number, since it is smaller than the sum of its proper divisors (86728180).

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

61948460 is a wasteful number, since it uses less digits than its factorization.

61948460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442505 (or 442503 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 61948460 is about 7870.7344002958. The cubic root of 61948460 is about 395.6794586645.

The spelling of 61948460 in words is "sixty-one million, nine hundred forty-eight thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 442489 884978 1769956 2212445 3097423 4424890 6194846 8849780 12389692 15487115 30974230 61948460