Search a number
-
+
1538077368 = 2331993071049
BaseRepresentation
bin101101110101101…
…0011001010111000
310222012011102111110
41123223103022320
511122221433433
6412342200320
753054304402
oct13353231270
93865142443
101538077368
1171a228323
1236b1230a0
131b6864969
141083b5b72
159006b963
hex5bad32b8

1538077368 has 64 divisors (see below), whose sum is σ = 3880800000. Its totient is φ = 507969792.

The previous prime is 1538077361. The next prime is 1538077381. The reversal of 1538077368 is 8637708351.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538077361) by changing a digit.

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, 1465708 + ... + 1466756.

It is an arithmetic number, because the mean of its divisors is an integer number (60637500).

Almost surely, 21538077368 is an apocalyptic number.

It is an amenable number.

1538077368 is an abundant number, since it is smaller than the sum of its proper divisors (2342722632).

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

1538077368 is a wasteful number, since it uses less digits than its factorization.

1538077368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1560 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 1538077368 is about 39218.3294901759. The cubic root of 1538077368 is about 1154.3195752445.

The spelling of 1538077368 in words is "one billion, five hundred thirty-eight million, seventy-seven thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 199 307 398 597 614 796 921 1049 1194 1228 1592 1842 2098 2388 2456 3147 3684 4196 4776 6294 7368 8392 12588 25176 61093 122186 183279 208751 244372 322043 366558 417502 488744 626253 644086 733116 835004 966129 1252506 1288172 1466232 1670008 1932258 2505012 2576344 3864516 5010024 7729032 64086557 128173114 192259671 256346228 384519342 512692456 769038684 1538077368