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70225001 = 711371572
BaseRepresentation
bin1000010111110…
…00110001101001
311220010210120222
410023320301221
5120434200001
610545055425
71511621420
oct413706151
9156123528
1070225001
11367050a0
121b627575
131171a072
1494802b7
15627261b
hex42f8c69

70225001 has 24 divisors (see below), whose sum is σ = 90495936. Its totient is φ = 52902720.

The previous prime is 70224983. The next prime is 70225009. The reversal of 70225001 is 10052207.

It is not a de Polignac number, because 70225001 - 26 = 70224937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70225009) 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 23 ways as a sum of consecutive naturals, for example, 447215 + ... + 447371.

It is an arithmetic number, because the mean of its divisors is an integer number (3770664).

Almost surely, 270225001 is an apocalyptic number.

It is an amenable number.

70225001 is a deficient number, since it is larger than the sum of its proper divisors (20270935).

70225001 is a wasteful number, since it uses less digits than its factorization.

70225001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 70225001 is about 8380.0358591118. The cubic root of 70225001 is about 412.5696259576.

Adding to 70225001 its reverse (10052207), we get a palindrome (80277208).

The spelling of 70225001 in words is "seventy million, two hundred twenty-five thousand, one".

Divisors: 1 7 11 37 77 157 259 407 1099 1727 2849 5809 12089 24649 40663 63899 172543 271139 447293 912013 1897973 6384091 10032143 70225001