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128826900696 = 233131087379859
BaseRepresentation
bin111011111111010101…
…1101000000011011000
3110022112011112121220110
41313332223220003120
54102314141310241
6135103211324320
712210310405524
oct1677653500330
9408464477813
10128826900696
114a6a947727a
1220b73a506a0
13c1c0b3b730
14634177cd84
15353ed8d816
hex1dfeae80d8

128826900696 has 64 divisors (see below), whose sum is σ = 347161651200. Its totient is φ = 39602475648.

The previous prime is 128826900691. The next prime is 128826900701. The reversal of 128826900696 is 696009628821.

It is an interprime number because it is at equal distance from previous prime (128826900691) and next prime (128826900701).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128826900691) 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, 149215 + ... + 529073.

It is an arithmetic number, because the mean of its divisors is an integer number (5424400800).

Almost surely, 2128826900696 is an apocalyptic number.

It is an amenable number.

128826900696 is an abundant number, since it is smaller than the sum of its proper divisors (218334750504).

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

128826900696 is a wasteful number, since it uses less digits than its factorization.

128826900696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380968 (or 380964 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 128826900696 in words is "one hundred twenty-eight billion, eight hundred twenty-six million, nine hundred thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 1087 2174 3261 4348 6522 8696 13044 14131 26088 28262 42393 56524 84786 113048 169572 339144 379859 759718 1139577 1519436 2279154 3038872 4558308 4938167 9116616 9876334 14814501 19752668 29629002 39505336 59258004 118516008 412906733 825813466 1238720199 1651626932 2477440398 3303253864 4954880796 5367787529 9909761592 10735575058 16103362587 21471150116 32206725174 42942300232 64413450348 128826900696