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153021025145 = 549736154073
BaseRepresentation
bin1000111010000011000…
…0111000101101111001
3112121222022001111021202
42032200300320231321
510001341340301040
6154144043343545
714025001152512
oct2164060705571
9477868044252
10153021025145
115999441a04a
12257a6521bb5
13115784158c1
147598aaba09
153ea8e28015
hex23a0c38b79

153021025145 has 8 divisors (see below), whose sum is σ = 183662184456. Its totient is φ = 122392183936.

The previous prime is 153021025121. The next prime is 153021025189. The reversal of 153021025145 is 541520120351.

It can be written as a sum of positive squares in 4 ways, for example, as 15151394281 + 137869630864 = 123091^2 + 371308^2 .

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 153021025145 - 220 = 153019976569 is a prime.

It is a Duffinian 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, 3052172 + ... + 3101901.

It is an arithmetic number, because the mean of its divisors is an integer number (22957773057).

Almost surely, 2153021025145 is an apocalyptic number.

It is an amenable number.

153021025145 is a deficient number, since it is larger than the sum of its proper divisors (30641159311).

153021025145 is an equidigital number, since it uses as much as digits as its factorization.

153021025145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6159051.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 153021025145 its reverse (541520120351), we get a palindrome (694541145496).

The spelling of 153021025145 in words is "one hundred fifty-three billion, twenty-one million, twenty-five thousand, one hundred forty-five".

Divisors: 1 5 4973 24865 6154073 30770365 30604205029 153021025145