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142621250215 = 5151311885153
BaseRepresentation
bin1000010011010011100…
…0111001001010100111
3111122010112001012001111
42010310320321022213
54314042020001330
6145304100205451
713206200424133
oct2046470711247
9448115035044
10142621250215
1155537a83234
1223783699887
13105ab965422
146c8d8023c3
153a9aded32a
hex2134e392a7

142621250215 has 8 divisors (see below), whose sum is σ = 171156901968. Its totient is φ = 114089399040.

The previous prime is 142621250203. The next prime is 142621250257. The reversal of 142621250215 is 512052126241.

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

It is not a de Polignac number, because 142621250215 - 27 = 142621250087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866922 + ... + 1018231.

It is an arithmetic number, because the mean of its divisors is an integer number (21394612746).

Almost surely, 2142621250215 is an apocalyptic number.

142621250215 is a deficient number, since it is larger than the sum of its proper divisors (28535651753).

142621250215 is a wasteful number, since it uses less digits than its factorization.

142621250215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900289.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 142621250215 its reverse (512052126241), we get a palindrome (654673376456).

The spelling of 142621250215 in words is "one hundred forty-two billion, six hundred twenty-one million, two hundred fifty thousand, two hundred fifteen".

Divisors: 1 5 15131 75655 1885153 9425765 28524250043 142621250215