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61401003 = 322790163
BaseRepresentation
bin1110101000111…
…0011110101011
311021112111100020
43222032132223
5111204313003
610032011523
71343620446
oct352163653
9137474306
1061401003
1131728534
1218690ba3
13c94a871
14822465d
1555ccd53
hex3a8e7ab

61401003 has 8 divisors (see below), whose sum is σ = 82229568. Its totient is φ = 40753224.

The previous prime is 61401001. The next prime is 61401037. The reversal of 61401003 is 30010416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61401003 - 21 = 61401001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61401001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44401 + ... + 45762.

It is an arithmetic number, because the mean of its divisors is an integer number (10278696).

Almost surely, 261401003 is an apocalyptic number.

61401003 is a deficient number, since it is larger than the sum of its proper divisors (20828565).

61401003 is a wasteful number, since it uses less digits than its factorization.

61401003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90393.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 61401003 is about 7835.8792104013. The cubic root of 61401003 is about 394.5104290913.

Adding to 61401003 its reverse (30010416), we get a palindrome (91411419).

The spelling of 61401003 in words is "sixty-one million, four hundred one thousand, three".

Divisors: 1 3 227 681 90163 270489 20467001 61401003