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48779490 = 2351918513
BaseRepresentation
bin1011101000010…
…1000011100010
310101210020212210
42322011003202
544441420430
64501302550
71131422154
oct272050342
9111706783
1048779490
1125597831
1214404a56
13a14ba06
14669aad4
1544382b0
hex2e850e2

48779490 has 32 divisors (see below), whose sum is σ = 117697536. Its totient is φ = 12938240.

The previous prime is 48779483. The next prime is 48779491. The reversal of 48779490 is 9497784.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (48779491) 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, 1474 + ... + 9986.

It is an arithmetic number, because the mean of its divisors is an integer number (3678048).

Almost surely, 248779490 is an apocalyptic number.

48779490 is an abundant number, since it is smaller than the sum of its proper divisors (68918046).

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

48779490 is a wasteful number, since it uses less digits than its factorization.

48779490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8714.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 48779490 is about 6984.2315253720. The cubic root of 48779490 is about 365.3808247693.

The spelling of 48779490 in words is "forty-eight million, seven hundred seventy-nine thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 191 382 573 955 1146 1910 2865 5730 8513 17026 25539 42565 51078 85130 127695 255390 1625983 3251966 4877949 8129915 9755898 16259830 24389745 48779490