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155030032001 = 1313787046621
BaseRepresentation
bin1001000001100010000…
…0101000111010000001
3112211011022100121121002
42100120200220322001
510020000142011001
6155115251341345
714125534346405
oct2203040507201
9484138317532
10155030032001
115a825458699
12260672b1855
13118086c4760
14770982d105
1540754b946b
hex2418828e81

155030032001 has 8 divisors (see below), whose sum is σ = 168174073704. Its totient is φ = 142060083840.

The previous prime is 155030031977. The next prime is 155030032009. The reversal of 155030032001 is 100230030551.

It can be written as a sum of positive squares in 4 ways, for example, as 40420700401 + 114609331600 = 201049^2 + 338540^2 .

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 155030032001 - 214 = 155030015617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155030032009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43521530 + ... + 43525091.

It is an arithmetic number, because the mean of its divisors is an integer number (21021759213).

Almost surely, 2155030032001 is an apocalyptic number.

It is an amenable number.

155030032001 is a deficient number, since it is larger than the sum of its proper divisors (13144041703).

155030032001 is a wasteful number, since it uses less digits than its factorization.

155030032001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87046771.

The product of its (nonzero) digits is 450, while the sum is 20.

Adding to 155030032001 its reverse (100230030551), we get a palindrome (255260062552).

The spelling of 155030032001 in words is "one hundred fifty-five billion, thirty million, thirty-two thousand, one".

Divisors: 1 13 137 1781 87046621 1131606073 11925387077 155030032001