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64623001 = 172311719
BaseRepresentation
bin1111011010000…
…1000110011001
311111121012002111
43312201012121
5113020414001
610225032321
71413200152
oct366410631
9144535074
1064623001
1133529243
12197856a1
1310508281
148822929
155a17851
hex3da1199

64623001 has 12 divisors (see below), whose sum is σ = 68964480. Its totient is φ = 60541760.

The previous prime is 64622983. The next prime is 64623019. The reversal of 64623001 is 10032646.

64623001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64622983) and next prime (64623019).

It is not a de Polignac number, because 64623001 - 25 = 64622969 is a prime.

It is a super-2 number, since 2×646230012 = 8352264516492002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64623071) 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 11 ways as a sum of consecutive naturals, for example, 89520 + ... + 90238.

It is an arithmetic number, because the mean of its divisors is an integer number (5747040).

Almost surely, 264623001 is an apocalyptic number.

It is an amenable number.

64623001 is a deficient number, since it is larger than the sum of its proper divisors (4341479).

64623001 is a wasteful number, since it uses less digits than its factorization.

64623001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 64623001 is about 8038.8432625596. The cubic root of 64623001 is about 401.2937298962.

Adding to 64623001 its reverse (10032646), we get a palindrome (74655647).

The spelling of 64623001 in words is "sixty-four million, six hundred twenty-three thousand, one".

Divisors: 1 17 289 311 719 5287 12223 89879 207791 223609 3801353 64623001