Search a number
-
+
1030381542 = 232291973911
BaseRepresentation
bin111101011010100…
…101111111100110
32122210211210202100
4331122211333212
54102234202132
6250124352530
734351045551
oct7532457746
92583753670
101030381542
114896949a3
122490a5746
13135616a28
149abb9698
15606d337c
hex3d6a5fe6

1030381542 has 24 divisors (see below), whose sum is σ = 2309477040. Its totient is φ = 331616880.

The previous prime is 1030381529. The next prime is 1030381549. The reversal of 1030381542 is 2451830301.

It is a happy number.

1030381542 is a `hidden beast` number, since 10 + 30 + 3 + 81 + 542 = 666.

It is a super-2 number, since 2×10303815422 = 2123372244188595528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030381549) 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, 986434 + ... + 987477.

It is an arithmetic number, because the mean of its divisors is an integer number (96228210).

Almost surely, 21030381542 is an apocalyptic number.

1030381542 is an abundant number, since it is smaller than the sum of its proper divisors (1279095498).

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

1030381542 is a wasteful number, since it uses less digits than its factorization.

1030381542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973948 (or 1973945 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1030381542 is about 32099.5567259113. The cubic root of 1030381542 is about 1010.0263176490.

The spelling of 1030381542 in words is "one billion, thirty million, three hundred eighty-one thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 522 1973911 3947822 5921733 11843466 17765199 35530398 57243419 114486838 171730257 343460514 515190771 1030381542