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49919480 = 23513175647
BaseRepresentation
bin1011111001101…
…1010111111000
310110221011122122
42332123113320
5100234410410
64541540412
71144210562
oct276332770
9113834578
1049919480
11261a6276
1214874708
13a45a870
1468b6332
1545b0e55
hex2f9b5f8

49919480 has 64 divisors (see below), whose sum is σ = 128096640. Its totient is φ = 17344512.

The previous prime is 49919413. The next prime is 49919501. The reversal of 49919480 is 8491994.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6017 + ... + 11663.

It is an arithmetic number, because the mean of its divisors is an integer number (2001510).

Almost surely, 249919480 is an apocalyptic number.

49919480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49919480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64048320).

49919480 is an abundant number, since it is smaller than the sum of its proper divisors (78177160).

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

49919480 is a wasteful number, since it uses less digits than its factorization.

49919480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5688 (or 5684 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 49919480 is about 7065.3718939628. The cubic root of 49919480 is about 368.2052848012.

The spelling of 49919480 in words is "forty-nine million, nine hundred nineteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 17 20 26 34 40 52 65 68 85 104 130 136 170 221 260 340 442 520 680 884 1105 1768 2210 4420 5647 8840 11294 22588 28235 45176 56470 73411 95999 112940 146822 191998 225880 293644 367055 383996 479995 587288 734110 767992 959990 1247987 1468220 1919980 2495974 2936440 3839960 4991948 6239935 9983896 12479870 24959740 49919480