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990125000994 = 233773139439541
BaseRepresentation
bin11100110100010000000…
…11001000100100100010
310111122200111212111111010
432122020003020210202
5112210234000012434
62034505051001350
7131351135434323
oct16321003104442
93448614774433
10990125000994
11351a00828a98
1213ba86a39256
13724a346666c
1435ccab4244a
151ab4e84a9e9
hexe6880c8922

990125000994 has 64 divisors (see below), whose sum is σ = 2076466734720. Its totient is φ = 314443399680.

The previous prime is 990125000933. The next prime is 990125000999. The reversal of 990125000994 is 499000521099.

It is not an unprimeable number, because it can be changed into a prime (990125000999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2032864 + ... + 2472404.

It is an arithmetic number, because the mean of its divisors is an integer number (32444792730).

Almost surely, 2990125000994 is an apocalyptic number.

990125000994 is an abundant number, since it is smaller than the sum of its proper divisors (1086341733726).

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

990125000994 is a wasteful number, since it uses less digits than its factorization.

990125000994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439795.

The product of its (nonzero) digits is 262440, while the sum is 48.

The spelling of 990125000994 in words is "nine hundred ninety billion, one hundred twenty-five million, nine hundred ninety-four", and thus it is an aban number.

Divisors: 1 2 3 6 37 73 74 111 139 146 219 222 278 417 438 834 2701 5143 5402 8103 10147 10286 15429 16206 20294 30441 30858 60882 375439 439541 750878 879082 1126317 1318623 2252634 2637246 16263017 32086493 32526034 48789051 61096199 64172986 96259479 97578102 122192398 183288597 192518958 366577194 1187200241 2260559363 2374400482 3561600723 4460022527 4521118726 6781678089 7123201446 8920045054 13380067581 13563356178 26760135162 165020833499 330041666998 495062500497 990125000994