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7689401148 = 22311134481003
BaseRepresentation
bin1110010100101001…
…01111001100111100
3201211212222001101010
413022110233030330
5111221441314043
63311002315220
7361356555102
oct71224571474
921755861333
107689401148
113296514990
1215a71b8b10
139570a4010
1452d335c72
153000e6133
hex1ca52f33c

7689401148 has 48 divisors (see below), whose sum is σ = 21078642816. Its totient is φ = 2150880960.

The previous prime is 7689401123. The next prime is 7689401149. The reversal of 7689401148 is 8411049867.

It is a junction number, because it is equal to n+sod(n) for n = 7689401097 and 7689401106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7689401149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2238786 + ... + 2242217.

It is an arithmetic number, because the mean of its divisors is an integer number (439138392).

Almost surely, 27689401148 is an apocalyptic number.

7689401148 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7689401148 is an abundant number, since it is smaller than the sum of its proper divisors (13389241668).

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

7689401148 is a wasteful number, since it uses less digits than its factorization.

7689401148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481034 (or 4481032 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 7689401148 is about 87689.2305132164. The cubic root of 7689401148 is about 1973.7743737260.

The spelling of 7689401148 in words is "seven billion, six hundred eighty-nine million, four hundred one thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 132 143 156 286 429 572 858 1716 4481003 8962006 13443009 17924012 26886018 49291033 53772036 58253039 98582066 116506078 147873099 174759117 197164132 233012156 295746198 349518234 591492396 640783429 699036468 1281566858 1922350287 2563133716 3844700574 7689401148