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1020430302 = 231920874289
BaseRepresentation
bin111100110100101…
…000011111011110
32122010010020012220
4330310220133132
54042212232202
6245131210210
734200341313
oct7464503736
92563106186
101020430302
11484008431
122458a6966
13133541418
1499748d0a
155e8b9abc
hex3cd287de

1020430302 has 32 divisors (see below), whose sum is σ = 2149804800. Its totient is φ = 322011648.

The previous prime is 1020430237. The next prime is 1020430309. The reversal of 1020430302 is 2030340201.

It is a super-2 number, since 2×10204303022 = 2082556002479622408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020430309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235774 + ... + 240062.

It is an arithmetic number, because the mean of its divisors is an integer number (67181400).

Almost surely, 21020430302 is an apocalyptic number.

1020430302 is an abundant number, since it is smaller than the sum of its proper divisors (1129374498).

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

1020430302 is a wasteful number, since it uses less digits than its factorization.

1020430302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1020430302 is about 31944.1747741274. The cubic root of 1020430302 is about 1006.7642425238.

Adding to 1020430302 its reverse (2030340201), we get a palindrome (3050770503).

The spelling of 1020430302 in words is "one billion, twenty million, four hundred thirty thousand, three hundred two".

Divisors: 1 2 3 6 19 38 57 114 2087 4174 4289 6261 8578 12522 12867 25734 39653 79306 81491 118959 162982 237918 244473 488946 8951143 17902286 26853429 53706858 170071717 340143434 510215151 1020430302