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420742112007 = 3720035338667
BaseRepresentation
bin1100001111101100010…
…11110010001100000111
31111020000020111211112110
412013312023302030013
523343134440041012
6521141455352103
742253244641530
oct6076613621407
91436006454473
10420742112007
11152487a54128
1269661822633
13308a29ab2b9
1416514c65687
15ae278a473c
hex61f62f2307

420742112007 has 8 divisors (see below), whose sum is σ = 641130837376. Its totient is φ = 240424063992.

The previous prime is 420742112003. The next prime is 420742112023. The reversal of 420742112007 is 700211247024.

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

It is not a de Polignac number, because 420742112007 - 22 = 420742112003 is a prime.

It is a super-2 number, since 2×4207421120072 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420742112003) 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, 10017669313 + ... + 10017669354.

It is an arithmetic number, because the mean of its divisors is an integer number (80141354672).

Almost surely, 2420742112007 is an apocalyptic number.

420742112007 is a deficient number, since it is larger than the sum of its proper divisors (220388725369).

420742112007 is a wasteful number, since it uses less digits than its factorization.

420742112007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20035338677.

The product of its (nonzero) digits is 6272, while the sum is 30.

The spelling of 420742112007 in words is "four hundred twenty billion, seven hundred forty-two million, one hundred twelve thousand, seven".

Divisors: 1 3 7 21 20035338667 60106016001 140247370669 420742112007