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19299896 = 23711171997
BaseRepresentation
bin100100110011…
…1111000111000
31100022112110222
41021213320320
514420044041
61525355212
7323021630
oct111477070
940275428
1019299896
11a992330
126568b08
133cc9875
1427c56c0
151a6374b
hex1267e38

19299896 has 128 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 6635520.

The previous prime is 19299883. The next prime is 19299899. The reversal of 19299896 is 69899291.

It is a super-2 number, since 2×192998962 = 744971971221632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19299899) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 198920 + ... + 199016.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

Almost surely, 219299896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19299896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25401600).

19299896 is an abundant number, since it is smaller than the sum of its proper divisors (31503304).

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

19299896 is a wasteful number, since it uses less digits than its factorization.

19299896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 153 counting only the distinct ones).

The product of its digits is 629856, while the sum is 53.

The square root of 19299896 is about 4393.1646907440. The cubic root of 19299896 is about 268.2367774542.

The spelling of 19299896 in words is "nineteen million, two hundred ninety-nine thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 11 14 17 19 22 28 34 38 44 56 68 76 77 88 97 119 133 136 152 154 187 194 209 238 266 308 323 374 388 418 476 532 616 646 679 748 776 836 952 1064 1067 1292 1309 1358 1463 1496 1649 1672 1843 2134 2261 2584 2618 2716 2926 3298 3553 3686 4268 4522 5236 5432 5852 6596 7106 7372 7469 8536 9044 10472 11543 11704 12901 13192 14212 14744 14938 18088 18139 20273 23086 24871 25802 28424 29876 31331 36278 40546 46172 49742 51604 59752 62662 72556 81092 92344 99484 103208 125324 126973 141911 145112 162184 198968 219317 250648 253946 283822 344641 438634 507892 567644 689282 877268 1015784 1135288 1378564 1754536 2412487 2757128 4824974 9649948 19299896