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103640000 = 26542591
BaseRepresentation
bin1100010110101…
…10101111000000
321020000110100112
412023112233000
5203012440000
614141210452
72365632302
oct613265700
9236013315
10103640000
11535582a2
122a860a28
1318619559
14da9b972
159173235
hex62d6bc0

103640000 has 70 divisors (see below), whose sum is σ = 257092704. Its totient is φ = 41440000.

The previous prime is 103639999. The next prime is 103640023. The reversal of 103640000 is 46301.

It is a super-3 number, since 3×1036400003 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 38705 + ... + 41295.

Almost surely, 2103640000 is an apocalyptic number.

103640000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128546352).

103640000 is an abundant number, since it is smaller than the sum of its proper divisors (153452704).

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

103640000 is an frugal number, since it uses more digits than its factorization.

103640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623 (or 2598 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 103640000 is about 10180.3732740995. The cubic root of 103640000 is about 469.7236945451.

Adding to 103640000 its reverse (46301), we get a palindrome (103686301).

The spelling of 103640000 in words is "one hundred three million, six hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1600 2000 2500 2591 4000 5000 5182 8000 10000 10364 12955 20000 20728 25910 40000 41456 51820 64775 82912 103640 129550 165824 207280 259100 323875 414560 518200 647750 829120 1036400 1295500 1619375 2072800 2591000 3238750 4145600 5182000 6477500 10364000 12955000 20728000 25910000 51820000 103640000