Search a number
-
+
388087002 = 23261571619
BaseRepresentation
bin10111001000011…
…011110011011010
31000001020212021200
4113020123303122
51243322241002
6102302015030
712421453662
oct2710336332
91001225250
10388087002
1118a079566
12a9b77476
13625300a4
14397831a2
152410db1c
hex1721bcda

388087002 has 48 divisors (see below), whose sum is σ = 857519520. Its totient is φ = 126813600.

The previous prime is 388086983. The next prime is 388087003. The reversal of 388087002 is 200780883.

It is a super-2 number, since 2×3880870022 = 301223042242696008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (388087003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 626649 + ... + 627267.

It is an arithmetic number, because the mean of its divisors is an integer number (17864990).

Almost surely, 2388087002 is an apocalyptic number.

388087002 is an abundant number, since it is smaller than the sum of its proper divisors (469432518).

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

388087002 is a wasteful number, since it uses less digits than its factorization.

388087002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 388087002 is about 19699.9239084825. The cubic root of 388087002 is about 729.4178144234.

The spelling of 388087002 in words is "three hundred eighty-eight million, eighty-seven thousand, two".

Divisors: 1 2 3 6 9 18 61 122 183 366 549 571 619 1098 1142 1238 1713 1857 3426 3714 5139 5571 10278 11142 34831 37759 69662 75518 104493 113277 208986 226554 313479 339831 353449 626958 679662 706898 1060347 2120694 3181041 6362082 21560389 43120778 64681167 129362334 194043501 388087002