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99628373 = 1321813257
BaseRepresentation
bin1011111000000…
…11010101010101
320221110122102202
411330003111111
5201001101443
613515214245
72316553505
oct574032525
9227418382
1099628373
11512682a9
1229447385
1317843600
14d335a05
158b2e7b8
hex5f03555

99628373 has 12 divisors (see below), whose sum is σ = 108510948. Its totient is φ = 91428480.

The previous prime is 99628367. The next prime is 99628421. The reversal of 99628373 is 37382699.

It can be written as a sum of positive squares in 6 ways, for example, as 25633969 + 73994404 = 5063^2 + 8602^2 .

It is not a de Polignac number, because 99628373 - 224 = 82851157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99628273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28961 + ... + 32217.

It is an arithmetic number, because the mean of its divisors is an integer number (9042579).

Almost surely, 299628373 is an apocalyptic number.

It is an amenable number.

99628373 is a deficient number, since it is larger than the sum of its proper divisors (8882575).

99628373 is a wasteful number, since it uses less digits than its factorization.

99628373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464 (or 3451 counting only the distinct ones).

The product of its digits is 489888, while the sum is 47.

The square root of 99628373 is about 9981.4013545193. The cubic root of 99628373 is about 463.5831897157.

It can be divided in two parts, 99628 and 373, that added together give a palindrome (100001).

The spelling of 99628373 in words is "ninety-nine million, six hundred twenty-eight thousand, three hundred seventy-three".

Divisors: 1 13 169 181 2353 3257 30589 42341 550433 589517 7663721 99628373