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128244028234 = 2721308612533
BaseRepresentation
bin111011101101111110…
…0001001001101001010
3110021000112202122012111
41313123330021031022
54100120432400414
6134525310332534
712160002153100
oct1673374111512
9407015678174
10128244028234
114a42a4575a3
1220a307ba14a
13c12a15b99a
1462c81b3c70
153508b058c4
hex1ddbf0934a

128244028234 has 12 divisors (see below), whose sum is σ = 223772743314. Its totient is φ = 54961726344.

The previous prime is 128244028169. The next prime is 128244028261. The reversal of 128244028234 is 432820442821.

It can be written as a sum of positive squares in only one way, i.e., 93664766209 + 34579262025 = 306047^2 + 185955^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 654306169 + ... + 654306364.

Almost surely, 2128244028234 is an apocalyptic number.

128244028234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128244028234 is a deficient number, since it is larger than the sum of its proper divisors (95528715080).

128244028234 is a wasteful number, since it uses less digits than its factorization.

128244028234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308612549 (or 1308612542 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The spelling of 128244028234 in words is "one hundred twenty-eight billion, two hundred forty-four million, twenty-eight thousand, two hundred thirty-four".

Divisors: 1 2 7 14 49 98 1308612533 2617225066 9160287731 18320575462 64122014117 128244028234