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49388388 = 22373971481
BaseRepresentation
bin1011110001100…
…1101101100100
310102221012010120
42330121231210
5100120412023
64522321540
71136536320
oct274315544
9112835116
1049388388
1125973255
12146592b0
13a302bca
1467b8980
1545088e3
hex2f19b64

49388388 has 48 divisors (see below), whose sum is σ = 132123264. Its totient is φ = 14065920.

The previous prime is 49388359. The next prime is 49388393. The reversal of 49388388 is 88388394.

It is a self number, because there is not a number n which added to its sum of digits gives 49388388.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32608 + ... + 34088.

It is an arithmetic number, because the mean of its divisors is an integer number (2752568).

Almost surely, 249388388 is an apocalyptic number.

It is an amenable number.

49388388 is an abundant number, since it is smaller than the sum of its proper divisors (82734876).

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

49388388 is a wasteful number, since it uses less digits than its factorization.

49388388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1890 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The square root of 49388388 is about 7027.6872440370. The cubic root of 49388388 is about 366.8948511712.

The spelling of 49388388 in words is "forty-nine million, three hundred eighty-eight thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 397 794 1191 1481 1588 2382 2779 2962 4443 4764 5558 5924 8337 8886 10367 11116 16674 17772 20734 31101 33348 41468 62202 124404 587957 1175914 1763871 2351828 3527742 4115699 7055484 8231398 12347097 16462796 24694194 49388388