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1231004030 = 251577391061
BaseRepresentation
bin100100101011111…
…1010000101111110
310011210100111001212
41021113322011332
510010114112110
6322052404422
742335235014
oct11127720576
93153314055
101231004030
11581962603
122a4316712
1316805b469
14b96c08b4
1573111e05
hex495fa17e

1231004030 has 32 divisors (see below), whose sum is σ = 2235042720. Its totient is φ = 488142720.

The previous prime is 1231004003. The next prime is 1231004069. The reversal of 1231004030 is 304001321.

It is a junction number, because it is equal to n+sod(n) for n = 1231003996 and 1231004014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1159700 + ... + 1160760.

It is an arithmetic number, because the mean of its divisors is an integer number (69845085).

Almost surely, 21231004030 is an apocalyptic number.

1231004030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231004030 is a deficient number, since it is larger than the sum of its proper divisors (1004038690).

1231004030 is a wasteful number, since it uses less digits than its factorization.

1231004030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1231004030 is about 35085.6670166038. The cubic root of 1231004030 is about 1071.7327240545.

Adding to 1231004030 its reverse (304001321), we get a palindrome (1535005351).

The spelling of 1231004030 in words is "one billion, two hundred thirty-one million, four thousand, thirty".

Divisors: 1 2 5 10 157 314 739 785 1061 1478 1570 2122 3695 5305 7390 10610 116023 166577 232046 333154 580115 784079 832885 1160230 1568158 1665770 3920395 7840790 123100403 246200806 615502015 1231004030