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51100157152 = 2511831749047
BaseRepresentation
bin101111100101110011…
…101000010011100000
311212220020221221112001
4233211303220103200
51314123120012102
635250341413344
73456211112002
oct574563502340
9155806857461
1051100157152
111a742785440
129aa140a254
134a849770a5
14268a8b0372
1514e125c487
hexbe5ce84e0

51100157152 has 48 divisors (see below), whose sum is σ = 111071544192. Its totient is φ = 22947483520.

The previous prime is 51100157111. The next prime is 51100157153. The reversal of 51100157152 is 25175100115.

51100157152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×511001571522 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51100157152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100157153) 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, 845308 + ... + 903739.

It is an arithmetic number, because the mean of its divisors is an integer number (2313990504).

Almost surely, 251100157152 is an apocalyptic number.

It is an amenable number.

51100157152 is an abundant number, since it is smaller than the sum of its proper divisors (59971387040).

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

51100157152 is a wasteful number, since it uses less digits than its factorization.

51100157152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749151 (or 1749143 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 28.

Adding to 51100157152 its reverse (25175100115), we get a palindrome (76275257267).

The spelling of 51100157152 in words is "fifty-one billion, one hundred million, one hundred fifty-seven thousand, one hundred fifty-two".

Divisors: 1 2 4 8 11 16 22 32 44 83 88 166 176 332 352 664 913 1328 1826 2656 3652 7304 14608 29216 1749047 3498094 6996188 13992376 19239517 27984752 38479034 55969504 76958068 145170901 153916136 290341802 307832272 580683604 615664544 1161367208 1596879911 2322734416 3193759822 4645468832 6387519644 12775039288 25550078576 51100157152