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151006213 = 3719720717
BaseRepresentation
bin10010000000000…
…10110000000101
3101112010220120201
421000002300011
5302124144323
622552330501
73512350231
oct1100026005
9345126521
10151006213
117826a226
12426a3a31
1325391bb7
14160ab5c1
15d3cc8ad
hex9002c05

151006213 has 8 divisors (see below), whose sum is σ = 155882232. Its totient is φ = 146172096.

The previous prime is 151006199. The next prime is 151006217. The reversal of 151006213 is 312600151.

It can be written as a sum of positive squares in 4 ways, for example, as 51365889 + 99640324 = 7167^2 + 9982^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-151006213 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 (151006217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3070 + ... + 17647.

It is an arithmetic number, because the mean of its divisors is an integer number (19485279).

Almost surely, 2151006213 is an apocalyptic number.

It is an amenable number.

151006213 is a deficient number, since it is larger than the sum of its proper divisors (4876019).

151006213 is a wasteful number, since it uses less digits than its factorization.

151006213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20951.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 151006213 is about 12288.4585282288. The cubic root of 151006213 is about 532.5147055238.

Adding to 151006213 its reverse (312600151), we get a palindrome (463606364).

The spelling of 151006213 in words is "one hundred fifty-one million, six thousand, two hundred thirteen".

Divisors: 1 37 197 7289 20717 766529 4081249 151006213