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151032442 = 21122812221
BaseRepresentation
bin10010000000010…
…01001001111010
3101112012020120011
421000021021322
5302131014232
622553052134
73512516551
oct1100111172
9345166504
10151032442
1178287a00
12426b704a
13253a0b12
14160b6d98
15d3d5547
hex900927a

151032442 has 24 divisors (see below), whose sum is σ = 250014996. Its totient is φ = 68376000.

The previous prime is 151032419. The next prime is 151032449. The reversal of 151032442 is 244230151.

It can be written as a sum of positive squares in 2 ways, for example, as 146143921 + 4888521 = 12089^2 + 2211^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (151032449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66892 + ... + 69112.

Almost surely, 2151032442 is an apocalyptic number.

151032442 is a deficient number, since it is larger than the sum of its proper divisors (98982554).

151032442 is a wasteful number, since it uses less digits than its factorization.

151032442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526 (or 2515 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 151032442 is about 12289.5257028089. The cubic root of 151032442 is about 532.5455354244.

Adding to 151032442 its reverse (244230151), we get a palindrome (395262593).

The spelling of 151032442 in words is "one hundred fifty-one million, thirty-two thousand, four hundred forty-two".

Divisors: 1 2 11 22 121 242 281 562 2221 3091 4442 6182 24431 34001 48862 68002 268741 537482 624101 1248202 6865111 13730222 75516221 151032442