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103867621225 = 5243214992
BaseRepresentation
bin110000010111011111…
…1100001111101101001
3100221002201020212011021
41200232333201331221
53200210102334400
6115414403332441
710334636133064
oct1405677417551
9327081225137
10103867621225
1140060623185
1218169081121
139a43b91a04
1450549958db
152a7da6171a
hex182efe1f69

103867621225 has 27 divisors (see below), whose sum is σ = 131948784183. Its totient is φ = 81107532240.

The previous prime is 103867621211. The next prime is 103867621301. The reversal of 103867621225 is 522126768301.

The square root of 103867621225 is 322285.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 37392343641 + 66475277584 = 193371^2 + 257828^2 .

It is not a de Polignac number, because 103867621225 - 213 = 103867613033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 69290526 + ... + 69292024.

Almost surely, 2103867621225 is an apocalyptic number.

103867621225 is the 322285-th square number.

103867621225 is the 161143-rd centered octagonal number.

It is an amenable number.

103867621225 is a deficient number, since it is larger than the sum of its proper divisors (28081162958).

103867621225 is an frugal number, since it uses more digits than its factorization.

103867621225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 103867621225 in words is "one hundred three billion, eight hundred sixty-seven million, six hundred twenty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 43 215 1075 1499 1849 7495 9245 37475 46225 64457 322285 1611425 2247001 2771651 11235005 13858255 56175025 69291275 96621043 483105215 2415526075 4154704849 20773524245 103867621225