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1387102434 = 237129311113
BaseRepresentation
bin101001010101101…
…1000000011100010
310120200002002211020
41102223120003202
510320044234214
6345350230310
746242114264
oct12253300342
93520062736
101387102434
11651a8a653
12328655396
131914b4093
14d2315b34
1581b984a9
hex52ad80e2

1387102434 has 32 divisors (see below), whose sum is σ = 2823133824. Its totient is φ = 454258560.

The previous prime is 1387102427. The next prime is 1387102463. The reversal of 1387102434 is 4342017831.

It is a junction number, because it is equal to n+sod(n) for n = 1387102395 and 1387102404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119262 + ... + 130374.

It is an arithmetic number, because the mean of its divisors is an integer number (88222932).

Almost surely, 21387102434 is an apocalyptic number.

1387102434 is an abundant number, since it is smaller than the sum of its proper divisors (1436031390).

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

1387102434 is a wasteful number, since it uses less digits than its factorization.

1387102434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11482.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1387102434 is about 37243.8241054809. The cubic root of 1387102434 is about 1115.2430135185.

The spelling of 1387102434 in words is "one billion, three hundred eighty-seven million, one hundred two thousand, four hundred thirty-four".

Divisors: 1 2 3 6 71 142 213 293 426 586 879 1758 11113 20803 22226 33339 41606 62409 66678 124818 789023 1578046 2367069 3256109 4734138 6512218 9768327 19536654 231183739 462367478 693551217 1387102434