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20151152 = 247225703
BaseRepresentation
bin100110011011…
…1101101110000
31101220210011222
41030313231300
520124314102
61555524212
7333165500
oct114675560
941823158
1020151152
111041394a
1268b9668
134237178
142967a00
151b80aa2
hex1337b70

20151152 has 30 divisors (see below), whose sum is σ = 45418968. Its totient is φ = 8635872.

The previous prime is 20151127. The next prime is 20151169. The reversal of 20151152 is 25115102.

It is a self number, because there is not a number n which added to its sum of digits gives 20151152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12068 + ... + 13635.

Almost surely, 220151152 is an apocalyptic number.

It is an amenable number.

20151152 is an abundant number, since it is smaller than the sum of its proper divisors (25267816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20151152 is a wasteful number, since it uses less digits than its factorization.

20151152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25725 (or 25712 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 20151152 is about 4489.0034528835. The cubic root of 20151152 is about 272.1238622727.

Adding to 20151152 its reverse (25115102), we get a palindrome (45266254).

The spelling of 20151152 in words is "twenty million, one hundred fifty-one thousand, one hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 25703 51406 102812 179921 205624 359842 411248 719684 1259447 1439368 2518894 2878736 5037788 10075576 20151152