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1031230142 = 22999171929
BaseRepresentation
bin111101011101110…
…101001010111110
32122212102220210222
4331131311022332
54102443331032
6250154501342
734361211605
oct7535651276
92585386728
101031230142
1148a114518
12249434852
13135853067
149ad5aa3c
15607eea12
hex3d7752be

1031230142 has 8 divisors (see below), whose sum is σ = 1547370000. Its totient is φ = 515440144.

The previous prime is 1031230103. The next prime is 1031230147. The reversal of 1031230142 is 2410321301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1031230142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031230147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79967 + ... + 91962.

It is an arithmetic number, because the mean of its divisors is an integer number (193421250).

Almost surely, 21031230142 is an apocalyptic number.

1031230142 is a deficient number, since it is larger than the sum of its proper divisors (516139858).

1031230142 is a wasteful number, since it uses less digits than its factorization.

1031230142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174930.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1031230142 is about 32112.7722565337. The cubic root of 1031230142 is about 1010.3035201891.

Adding to 1031230142 its reverse (2410321301), we get a palindrome (3441551443).

The spelling of 1031230142 in words is "one billion, thirty-one million, two hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 2999 5998 171929 343858 515615071 1031230142