Search a number
-
+
1952388 = 2232193281
BaseRepresentation
bin111011100101010000100
310200012011200
413130222010
5444434023
6105502500
722411044
oct7345204
93605150
101952388
111113949
127a1a30
13534879
1438b724
15288743
hex1dca84

1952388 has 36 divisors (see below), whose sum is σ = 4978428. Its totient is φ = 645120.

The previous prime is 1952381. The next prime is 1952407. The reversal of 1952388 is 8832591.

It can be written as a sum of positive squares in 2 ways, for example, as 887364 + 1065024 = 942^2 + 1032^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1952381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6808 + ... + 7088.

21952388 is an apocalyptic number.

1952388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1952388 is an abundant number, since it is smaller than the sum of its proper divisors (3026040).

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

1952388 is a wasteful number, since it uses less digits than its factorization.

1952388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 479 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1952388 is about 1397.2787839225. The cubic root of 1952388 is about 124.9842753553.

The spelling of 1952388 in words is "one million, nine hundred fifty-two thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 193 281 386 562 579 772 843 1124 1158 1686 1737 2316 2529 3372 3474 5058 6948 10116 54233 108466 162699 216932 325398 488097 650796 976194 1952388