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145951001 = 7171226479
BaseRepresentation
bin10001011001100…
…00100100011001
3101011122002010122
420230300210121
5244330413001
622252123025
73421364060
oct1054604431
9334562118
10145951001
1175427169
1240a66475
1324311c51
14155531d7
15cc2eb1b
hex8b30919

145951001 has 8 divisors (see below), whose sum is σ = 176613120. Its totient is φ = 117741888.

The previous prime is 145950919. The next prime is 145951019. The reversal of 145951001 is 100159541.

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

It is a cyclic number.

It is not a de Polignac number, because 145951001 - 214 = 145934617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145951081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613121 + ... + 613358.

It is an arithmetic number, because the mean of its divisors is an integer number (22076640).

Almost surely, 2145951001 is an apocalyptic number.

It is an amenable number.

145951001 is a deficient number, since it is larger than the sum of its proper divisors (30662119).

145951001 is a wasteful number, since it uses less digits than its factorization.

145951001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226503.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 145951001 is about 12081.0182103993. The cubic root of 145951001 is about 526.5048296123.

The spelling of 145951001 in words is "one hundred forty-five million, nine hundred fifty-one thousand, one".

Divisors: 1 7 17 119 1226479 8585353 20850143 145951001