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102450740 = 22572331817
BaseRepresentation
bin1100001101101…
…00011000110100
321010210000222212
412012310120310
5202211410430
614055512552
72352550130
oct606643064
9233700885
10102450740
1152915837
122a388758
13182c1152
14d86c3c0
158edab95
hex61b4634

102450740 has 48 divisors (see below), whose sum is σ = 256580352. Its totient is φ = 33597696.

The previous prime is 102450703. The next prime is 102450767. The reversal of 102450740 is 47054201.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12689 + ... + 19128.

It is an arithmetic number, because the mean of its divisors is an integer number (5345424).

Almost surely, 2102450740 is an apocalyptic number.

102450740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102450740 is an abundant number, since it is smaller than the sum of its proper divisors (154129612).

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

102450740 is a wasteful number, since it uses less digits than its factorization.

102450740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31856 (or 31854 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 102450740 is about 10121.7952953021. The cubic root of 102450740 is about 467.9200986148.

The spelling of 102450740 in words is "one hundred two million, four hundred fifty thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 31817 63634 127268 159085 222719 318170 445438 636340 731791 890876 1113595 1463582 2227190 2927164 3658955 4454380 5122537 7317910 10245074 14635820 20490148 25612685 51225370 102450740